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1. 2022 taxonomic update of phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales

Author

Kuhn, J, Adkins, S, Alkhovsky, S, Avšič-Županc, T, Ayllón, M, Bahl, J, Balkema-Buschmann, A, Ballinger, M, Bandte, M, Beer, M, Bejerman, N, Bergeron, É, Biedenkopf, N, Bigarré, L, Blair, C, Blasdell, K, Bradfute, S, Briese, T, Brown, P, Bruggmann, R, Buchholz, U, Buchmeier, M, Bukreyev, A, Burt, F, Büttner, C, Calisher, C, Candresse, T, Carson, J, Casas, I, Chandran, K, Charrel, R, Chiaki, Y, Crane, A, Crane, M, Dacheux, L, Bó, E, de la Torre, J, de Lamballerie, X, de Souza, W, de Swart, R, Dheilly, N, Di Paola, N, Di Serio, F, Dietzgen, R, Digiaro, M, Drexler, J, Duprex, W, Dürrwald, R, Easton, A, Elbeaino, T, Ergünay, K, Feng, G, Feuvrier, C, Firth, A, Fooks, A, Formenty, P, Freitas-Astúa, J, Gago-Zachert, S, García, M, García-Sastre, A, Garrison, A, Godwin, S, Gonzalez, J, de Bellocq, J, Griffiths, A, Groschup, M, Günther, S, Hammond, J, Hepojoki, J, Hierweger, M, Hongō, S, Horie, M, Horikawa, H, Hughes, H, Hume, A, Hyndman, T, Jiāng, D, Jonson, G, Junglen, S, Kadono, F, Karlin, D, Klempa, B, Klingström, J, Koch, M, Kondō, H, Koonin, E, Krásová, J, Krupovic, M, Kubota, K, Kuzmin, I, Laenen, L, Lambert, A, Lǐ, J, Li, J, Lieffrig, F, Lukashevich, I, Luo, D, Maes, P, Marklewitz, M, Marshall, S, Marzano, S, Mccauley, J, Mirazimi, A, Mohr, P, Moody, N, Morita, Y, Morrison, R, Mühlberger, E, Naidu, R, Natsuaki, T, Navarro, J, Neriya, Y, Netesov, S, Neumann, G, Nowotny, N, Ochoa-Corona, F, Palacios, G, Pallandre, L, Pallás, V, Papa, A, Paraskevopoulou, S, Parrish, C, Pauvolid-Corrêa, A, Pawęska, J, Pérez, D, Pfaff, F, Plemper, R, Postler, T, Pozet, F, Radoshitzky, S, Ramos-González, P, Rehanek, M, Resende, R, Reyes, C, Romanowski, V, Rubbenstroth, D, Rubino, L, Rumbou, A, Runstadler, J, Rupp, M, Sabanadzovic, S, Sasaya, T, Schmidt-Posthaus, H, Schwemmle, M, Seuberlich, T, Sharpe, S, Shi, M, Sironi, M, Smither, S, Song, J, Spann, K, Spengler, J, Stenglein, M, Takada, A, Tesh, R, Těšíková, J, Thornburg, N, Tischler, N, Tomitaka, Y, Tomonaga, K, Tordo, N, Tsunekawa, K, Turina, M, Tzanetakis, I, Vaira, A, van den Hoogen, B, Vanmechelen, B, Vasilakis, N, Verbeek, M, von Bargen, S, Wada, J, Wahl, V, Walker, P, Whitfield, A, Williams, J, Wolf, Y, Yamasaki, J, Yanagisawa, H, Ye, G, Zhang, Y, Økland, A, Kuhn JH, Adkins S, Alkhovsky SV, Avšič-Županc T, Ayllón MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Bandte M, Beer M, Bejerman N, Bergeron É, Biedenkopf N, Bigarré L, Blair CD, Blasdell KR, Bradfute SB, Briese T, Brown PA, Bruggmann R, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Büttner C, Calisher CH, Candresse T, Carson J, Casas I, Chandran K, Charrel RN, Chiaki Y, Crane A, Crane M, Dacheux L, Bó ED, de la Torre JC, de Lamballerie X, de Souza WM, de Swart RL, Dheilly NM, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Drexler JF, Duprex WP, Dürrwald R, Easton AJ, Elbeaino T, Ergünay K, Feng G, Feuvrier C, Firth AE, Fooks AR, Formenty PBH, Freitas-Astúa J, Gago-Zachert S, García ML, García-Sastre A, Garrison AR, Godwin SE, Gonzalez JJ, de Bellocq JG, Griffiths A, Groschup MH, Günther S, Hammond J, Hepojoki J, Hierweger MM, Hongō S, Horie M, Horikawa H, Hughes HR, Hume AJ, Hyndman TH, Jiāng D, Jonson GB, Junglen S, Kadono F, Karlin DG, Klempa B, Klingström J, Koch MC, Kondō H, Koonin EV, Krásová J, Krupovic M, Kubota K, Kuzmin IV, Laenen L, Lambert AJ, Lǐ J, Li JM, Lieffrig F, Lukashevich IS, Luo D, Maes P, Marklewitz M, Marshall SH, Marzano SL, McCauley JW, Mirazimi A, Mohr PG, Moody NJG, Morita Y, Morrison RN, Mühlberger E, Naidu R, Natsuaki T, Navarro JA, Neriya Y, Netesov SV, Neumann G, Nowotny N, Ochoa-Corona FM, Palacios G, Pallandre L, Pallás V, Papa A, Paraskevopoulou S, Parrish CR, Pauvolid-Corrêa A, Pawęska JT, Pérez DR, Pfaff F, Plemper RK, Postler TS, Pozet F, Radoshitzky SR, Ramos-González PL, Rehanek M, Resende RO, Reyes CA, Romanowski V, Rubbenstroth D, Rubino L, Rumbou A, Runstadler JA, Rupp M, Sabanadzovic S, Sasaya T, Schmidt-Posthaus H, Schwemmle M, Seuberlich T, Sharpe SR, Shi M, Sironi M, Smither S, Song JW, Spann KM, Spengler JR, Stenglein MD, Takada A, Tesh RB, Těšíková J, Thornburg NJ, Tischler ND, Tomitaka Y, Tomonaga K, Tordo N, Tsunekawa K, Turina M, Tzanetakis IE, Vaira AM, van den Hoogen B, Vanmechelen B, Vasilakis N, Verbeek M, von Bargen S, Wada J, Wahl V, Walker PJ, Whitfield AE, Williams JV, Wolf YI, Yamasaki J, Yanagisawa H, Ye G, Zhang YZ, Økland AL., Kuhn, J, Adkins, S, Alkhovsky, S, Avšič-Županc, T, Ayllón, M, Bahl, J, Balkema-Buschmann, A, Ballinger, M, Bandte, M, Beer, M, Bejerman, N, Bergeron, É, Biedenkopf, N, Bigarré, L, Blair, C, Blasdell, K, Bradfute, S, Briese, T, Brown, P, Bruggmann, R, Buchholz, U, Buchmeier, M, Bukreyev, A, Burt, F, Büttner, C, Calisher, C, Candresse, T, Carson, J, Casas, I, Chandran, K, Charrel, R, Chiaki, Y, Crane, A, Crane, M, Dacheux, L, Bó, E, de la Torre, J, de Lamballerie, X, de Souza, W, de Swart, R, Dheilly, N, Di Paola, N, Di Serio, F, Dietzgen, R, Digiaro, M, Drexler, J, Duprex, W, Dürrwald, R, Easton, A, Elbeaino, T, Ergünay, K, Feng, G, Feuvrier, C, Firth, A, Fooks, A, Formenty, P, Freitas-Astúa, J, Gago-Zachert, S, García, M, García-Sastre, A, Garrison, A, Godwin, S, Gonzalez, J, de Bellocq, J, Griffiths, A, Groschup, M, Günther, S, Hammond, J, Hepojoki, J, Hierweger, M, Hongō, S, Horie, M, Horikawa, H, Hughes, H, Hume, A, Hyndman, T, Jiāng, D, Jonson, G, Junglen, S, Kadono, F, Karlin, D, Klempa, B, Klingström, J, Koch, M, Kondō, H, Koonin, E, Krásová, J, Krupovic, M, Kubota, K, Kuzmin, I, Laenen, L, Lambert, A, Lǐ, J, Li, J, Lieffrig, F, Lukashevich, I, Luo, D, Maes, P, Marklewitz, M, Marshall, S, Marzano, S, Mccauley, J, Mirazimi, A, Mohr, P, Moody, N, Morita, Y, Morrison, R, Mühlberger, E, Naidu, R, Natsuaki, T, Navarro, J, Neriya, Y, Netesov, S, Neumann, G, Nowotny, N, Ochoa-Corona, F, Palacios, G, Pallandre, L, Pallás, V, Papa, A, Paraskevopoulou, S, Parrish, C, Pauvolid-Corrêa, A, Pawęska, J, Pérez, D, Pfaff, F, Plemper, R, Postler, T, Pozet, F, Radoshitzky, S, Ramos-González, P, Rehanek, M, Resende, R, Reyes, C, Romanowski, V, Rubbenstroth, D, Rubino, L, Rumbou, A, Runstadler, J, Rupp, M, Sabanadzovic, S, Sasaya, T, Schmidt-Posthaus, H, Schwemmle, M, Seuberlich, T, Sharpe, S, Shi, M, Sironi, M, Smither, S, Song, J, Spann, K, Spengler, J, Stenglein, M, Takada, A, Tesh, R, Těšíková, J, Thornburg, N, Tischler, N, Tomitaka, Y, Tomonaga, K, Tordo, N, Tsunekawa, K, Turina, M, Tzanetakis, I, Vaira, A, van den Hoogen, B, Vanmechelen, B, Vasilakis, N, Verbeek, M, von Bargen, S, Wada, J, Wahl, V, Walker, P, Whitfield, A, Williams, J, Wolf, Y, Yamasaki, J, Yanagisawa, H, Ye, G, Zhang, Y, Økland, A, Kuhn JH, Adkins S, Alkhovsky SV, Avšič-Županc T, Ayllón MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Bandte M, Beer M, Bejerman N, Bergeron É, Biedenkopf N, Bigarré L, Blair CD, Blasdell KR, Bradfute SB, Briese T, Brown PA, Bruggmann R, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Büttner C, Calisher CH, Candresse T, Carson J, Casas I, Chandran K, Charrel RN, Chiaki Y, Crane A, Crane M, Dacheux L, Bó ED, de la Torre JC, de Lamballerie X, de Souza WM, de Swart RL, Dheilly NM, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Drexler JF, Duprex WP, Dürrwald R, Easton AJ, Elbeaino T, Ergünay K, Feng G, Feuvrier C, Firth AE, Fooks AR, Formenty PBH, Freitas-Astúa J, Gago-Zachert S, García ML, García-Sastre A, Garrison AR, Godwin SE, Gonzalez JJ, de Bellocq JG, Griffiths A, Groschup MH, Günther S, Hammond J, Hepojoki J, Hierweger MM, Hongō S, Horie M, Horikawa H, Hughes HR, Hume AJ, Hyndman TH, Jiāng D, Jonson GB, Junglen S, Kadono F, Karlin DG, Klempa B, Klingström J, Koch MC, Kondō H, Koonin EV, Krásová J, Krupovic M, Kubota K, Kuzmin IV, Laenen L, Lambert AJ, Lǐ J, Li JM, Lieffrig F, Lukashevich IS, Luo D, Maes P, Marklewitz M, Marshall SH, Marzano SL, McCauley JW, Mirazimi A, Mohr PG, Moody NJG, Morita Y, Morrison RN, Mühlberger E, Naidu R, Natsuaki T, Navarro JA, Neriya Y, Netesov SV, Neumann G, Nowotny N, Ochoa-Corona FM, Palacios G, Pallandre L, Pallás V, Papa A, Paraskevopoulou S, Parrish CR, Pauvolid-Corrêa A, Pawęska JT, Pérez DR, Pfaff F, Plemper RK, Postler TS, Pozet F, Radoshitzky SR, Ramos-González PL, Rehanek M, Resende RO, Reyes CA, Romanowski V, Rubbenstroth D, Rubino L, Rumbou A, Runstadler JA, Rupp M, Sabanadzovic S, Sasaya T, Schmidt-Posthaus H, Schwemmle M, Seuberlich T, Sharpe SR, Shi M, Sironi M, Smither S, Song JW, Spann KM, Spengler JR, Stenglein MD, Takada A, Tesh RB, Těšíková J, Thornburg NJ, Tischler ND, Tomitaka Y, Tomonaga K, Tordo N, Tsunekawa K, Turina M, Tzanetakis IE, Vaira AM, van den Hoogen B, Vanmechelen B, Vasilakis N, Verbeek M, von Bargen S, Wada J, Wahl V, Walker PJ, Whitfield AE, Williams JV, Wolf YI, Yamasaki J, Yanagisawa H, Ye G, Zhang YZ, and Økland AL.

Abstract

In March 2022, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by two new families (bunyaviral Discoviridae and Tulasviridae), 41 new genera, and 98 new species. Three hundred forty-nine species were renamed and/or moved. The accidentally misspelled names of seven species were corrected. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

Published
2022

2. 2021 Taxonomic update of phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales

Author

Kuhn, J, Adkins, S, Agwanda, B, Al Kubrusli, R, Alkhovsky, S, Amarasinghe, G, Avsic-Zupanc, T, Ayllon, M, Bahl, J, Balkema-Buschmann, A, Ballinger, M, Basler, C, Bavari, S, Beer, M, Bejerman, N, Bennett, A, Bente, D, Bergeron, E, Bird, B, Blair, C, Blasdell, K, Blystad, D, Bojko, J, Borth, W, Bradfute, S, Breyta, R, Briese, T, Brown, P, Brown, J, Buchholz, U, Buchmeier, M, Bukreyev, A, Burt, F, Buttner, C, Calisher, C, Cao, M, Casas, I, Chandran, K, Charrel, R, Cheng, Q, Chiaki, Y, Chiapello, M, Choi, I, Ciuffo, M, Clegg, J, Crozier, I, Dal Bo, E, de la Torre, J, de Lamballerie, X, de Swart, R, Debat, H, Dheilly, N, Di Cicco, E, Di Paola, N, Di Serio, F, Dietzgen, R, Digiaro, M, Dolnik, O, Drebot, M, Drexler, J, Dundon, W, Duprex, W, Durrwald, R, Dye, J, Easton, A, Ebihara, H, Elbeaino, T, Ergunay, K, Ferguson, H, Fooks, A, Forgia, M, Formenty, P, Franova, J, Freitas-Astua, J, Fu, J, Furl, S, Gago-Zachert, S, Gao, G, Garcia, M, Garcia-Sastre, A, Garrison, A, Gaskin, T, Gonzalez, J, Griffiths, A, Goldberg, T, Groschup, M, Gunther, S, Hall, R, Hammond, J, Han, T, Hepojoki, J, Hewson, R, Hong, J, Hong, N, Hongo, S, Horie, M, Hu, J, Hu, T, Hughes, H, Huttner, F, Hyndman, T, Ilyas, M, Jalkanen, R, Jiang, D, Jonson, G, Junglen, S, Kadono, F, Kaukinen, K, Kawate, M, Klempa, B, Klingstrom, J, Kobinger, G, Koloniuk, I, Kondo, H, Koonin, E, Krupovic, M, Kubota, K, Kurath, G, Laenen, L, Lambert, A, Langevin, S, Lee, B, Lefkowitz, E, Leroy, E, Li, S, Li, L, Li, J, Liu, H, Lukashevich, I, Maes, P, de Souza, W, Marklewitz, M, Marshall, S, Marzano, S, Massart, S, Mccauley, J, Melzer, M, Mielke-Ehret, N, Miller, K, Ming, T, Mirazimi, A, Mordecai, G, Muhlbach, H, Muhlberger, E, Naidu, R, Natsuaki, T, Navarro, J, Netesov, S, Neumann, G, Nowotny, N, Nunes, M, Olmedo-Velarde, A, Palacios, G, Pallas, V, Palyi, B, Papa, A, Paraskevopoulou, S, Park, A, Parrish, C, Patterson, D, Pauvolid-Correa, A, Paweska, J, Payne, S, Peracchio, C, Perez, D, Postler, T, Qi, L, Radoshitzky, S, Resende, R, Reyes, C, Rima, B, Luna, G, Romanowski, V, Rota, P, Rubbenstroth, D, Rubino, L, Runstadler, J, Sabanadzovic, S, Sall, A, Salvato, M, Sang, R, Sasaya, T, Schulze, A, Schwemmle, M, Shi, M, Shi, X, Shi, Z, Shimomoto, Y, Shirako, Y, Siddell, S, Simmonds, P, Sironi, M, Smagghe, G, Smither, S, Song, J, Spann, K, Spengler, J, Stenglein, M, Stone, D, Sugano, J, Suttle, C, Tabata, A, Takada, A, Takeuchi, S, Tchouassi, D, Teffer, A, Tesh, R, Thornburg, N, Tomitaka, Y, Tomonaga, K, Tordo, N, Torto, B, Towner, J, Tsuda, S, Tu, C, Turina, M, Tzanetakis, I, Uchida, J, Usugi, T, Vaira, A, Vallino, M, van den Hoogen, B, Varsani, A, Vasilakis, N, Verbeek, M, von Bargen, S, Wada, J, Wahl, V, Walker, P, Wang, L, Wang, G, Wang, Y, Waqas, M, Wei, T, Wen, S, Whitfield, A, Williams, J, Wolf, Y, Wu, J, Xu, L, Yanagisawa, H, Yang, C, Yang, Z, Zerbini, F, Zhai, L, Zhang, Y, Zhang, S, Zhang, J, Zhang, Z, Zhou, X, Kuhn JH, Adkins S, Agwanda BR, Al Kubrusli R, Alkhovsky SV, Amarasinghe GK, Avsic-Zupanc T, Ayllon MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Basler CF, Bavari S, Beer M, Bejerman N, Bennett AJ, Bente DA, Bergeron E, Bird BH, Blair CD, Blasdell KR, Blystad DR, Bojko J, Borth WB, Bradfute S, Breyta R, Briese T, Brown PA, Brown JK, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Buttner C, Calisher CH, Cao MJ, Casas I, Chandran K, Charrel RN, Cheng Q, Chiaki Y, Chiapello M, Choi I, Ciuffo M, Clegg JCS, Crozier I, Dal Bo E, de la Torre JC, de Lamballerie X, de Swart RL, Debat H, Dheilly NM, Di Cicco E, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Dolnik O, Drebot MA, Drexler JF, Dundon WG, Duprex WP, Durrwald R, Dye JM, Easton AJ, Ebihara H, Elbeaino T, Ergunay K, Ferguson HW, Fooks AR, Forgia M, Formenty PBH, Franova J, Freitas-Astua J, Fu JJ, Furl S, Gago-Zachert S, Gao GF, Garcia ML, Garcia-Sastre A, Garrison AR, Gaskin T, Gonzalez JPJ, Griffiths A, Goldberg TL, Groschup MH, Gunther S, Hall RA, Hammond J, Han T, Hepojoki J, Hewson R, Hong J, Hong N, Hongo S, Horie M, Hu JS, Hu T, Hughes HR, Huttner F, Hyndman TH, Ilyas M, Jalkanen R, Jiang DH, Jonson GB, Junglen S, Kadono F, Kaukinen KH, Kawate M, Klempa B, Klingstrom J, Kobinger G, Koloniuk I, Kondo H, Koonin EV, Krupovic M, Kubota K, Kurath G, Laenen L, Lambert AJ, Langevin SL, Lee B, Lefkowitz EJ, Leroy EM, Li SR, Li LH, Li JR, Liu HZ, Lukashevich IS, Maes P, de Souza WM, Marklewitz M, Marshall SH, Marzano SYL, Massart S, McCauley JW, Melzer M, Mielke-Ehret N, Miller KM, Ming TJ, Mirazimi A, Mordecai GJ, Muhlbach HP, Muhlberger E, Naidu R, Natsuaki T, Navarro JA, Netesov SV, Neumann G, Nowotny N, Nunes MRT, Olmedo-Velarde A, Palacios G, Pallas V, Palyi B, Papa A, Paraskevopoulou S, Park AC, Parrish CR, Patterson DA, Pauvolid-Correa A, Paweska JT, Payne S, Peracchio C, Perez DR, Postler TS, Qi LY, Radoshitzky SR, Resende RO, Reyes CA, Rima BK, Luna GR, Romanowski V, Rota P, Rubbenstroth D, Rubino L, Runstadler JA, Sabanadzovic S, Sall AA, Salvato MS, Sang RS, Sasaya T, Schulze AD, Schwemmle M, Shi M, Shi XH, Shi ZL, Shimomoto Y, Shirako Y, Siddell SG, Simmonds P, Sironi M, Smagghe G, Smither S, Song JW, Spann K, Spengler JR, Stenglein MD, Stone DM, Sugano J, Suttle CA, Tabata A, Takada A, Takeuchi S, Tchouassi DP, Teffer A, Tesh RB, Thornburg NJ, Tomitaka Y, Tomonaga K, Tordo N, Torto B, Towner JS, Tsuda S, Tu CC, Turina M, Tzanetakis IE, Uchida J, Usugi T, Vaira AM, Vallino M, van den Hoogen B, Varsani A, Vasilakis N, Verbeek M, von Bargen S, Wada J, Wahl V, Walker PJ, Wang LF, Wang GP, Wang YX, Wang YQ, Waqas M, Wei TY, Wen SH, Whitfield AE, Williams JV, Wolf YI, Wu JX, Xu L, Yanagisawa H, Yang CX, Yang ZK, Zerbini FM, Zhai L, Zhang YZ, Zhang S, Zhang JG, Zhang Z, Zhou XP, Kuhn, J, Adkins, S, Agwanda, B, Al Kubrusli, R, Alkhovsky, S, Amarasinghe, G, Avsic-Zupanc, T, Ayllon, M, Bahl, J, Balkema-Buschmann, A, Ballinger, M, Basler, C, Bavari, S, Beer, M, Bejerman, N, Bennett, A, Bente, D, Bergeron, E, Bird, B, Blair, C, Blasdell, K, Blystad, D, Bojko, J, Borth, W, Bradfute, S, Breyta, R, Briese, T, Brown, P, Brown, J, Buchholz, U, Buchmeier, M, Bukreyev, A, Burt, F, Buttner, C, Calisher, C, Cao, M, Casas, I, Chandran, K, Charrel, R, Cheng, Q, Chiaki, Y, Chiapello, M, Choi, I, Ciuffo, M, Clegg, J, Crozier, I, Dal Bo, E, de la Torre, J, de Lamballerie, X, de Swart, R, Debat, H, Dheilly, N, Di Cicco, E, Di Paola, N, Di Serio, F, Dietzgen, R, Digiaro, M, Dolnik, O, Drebot, M, Drexler, J, Dundon, W, Duprex, W, Durrwald, R, Dye, J, Easton, A, Ebihara, H, Elbeaino, T, Ergunay, K, Ferguson, H, Fooks, A, Forgia, M, Formenty, P, Franova, J, Freitas-Astua, J, Fu, J, Furl, S, Gago-Zachert, S, Gao, G, Garcia, M, Garcia-Sastre, A, Garrison, A, Gaskin, T, Gonzalez, J, Griffiths, A, Goldberg, T, Groschup, M, Gunther, S, Hall, R, Hammond, J, Han, T, Hepojoki, J, Hewson, R, Hong, J, Hong, N, Hongo, S, Horie, M, Hu, J, Hu, T, Hughes, H, Huttner, F, Hyndman, T, Ilyas, M, Jalkanen, R, Jiang, D, Jonson, G, Junglen, S, Kadono, F, Kaukinen, K, Kawate, M, Klempa, B, Klingstrom, J, Kobinger, G, Koloniuk, I, Kondo, H, Koonin, E, Krupovic, M, Kubota, K, Kurath, G, Laenen, L, Lambert, A, Langevin, S, Lee, B, Lefkowitz, E, Leroy, E, Li, S, Li, L, Li, J, Liu, H, Lukashevich, I, Maes, P, de Souza, W, Marklewitz, M, Marshall, S, Marzano, S, Massart, S, Mccauley, J, Melzer, M, Mielke-Ehret, N, Miller, K, Ming, T, Mirazimi, A, Mordecai, G, Muhlbach, H, Muhlberger, E, Naidu, R, Natsuaki, T, Navarro, J, Netesov, S, Neumann, G, Nowotny, N, Nunes, M, Olmedo-Velarde, A, Palacios, G, Pallas, V, Palyi, B, Papa, A, Paraskevopoulou, S, Park, A, Parrish, C, Patterson, D, Pauvolid-Correa, A, Paweska, J, Payne, S, Peracchio, C, Perez, D, Postler, T, Qi, L, Radoshitzky, S, Resende, R, Reyes, C, Rima, B, Luna, G, Romanowski, V, Rota, P, Rubbenstroth, D, Rubino, L, Runstadler, J, Sabanadzovic, S, Sall, A, Salvato, M, Sang, R, Sasaya, T, Schulze, A, Schwemmle, M, Shi, M, Shi, X, Shi, Z, Shimomoto, Y, Shirako, Y, Siddell, S, Simmonds, P, Sironi, M, Smagghe, G, Smither, S, Song, J, Spann, K, Spengler, J, Stenglein, M, Stone, D, Sugano, J, Suttle, C, Tabata, A, Takada, A, Takeuchi, S, Tchouassi, D, Teffer, A, Tesh, R, Thornburg, N, Tomitaka, Y, Tomonaga, K, Tordo, N, Torto, B, Towner, J, Tsuda, S, Tu, C, Turina, M, Tzanetakis, I, Uchida, J, Usugi, T, Vaira, A, Vallino, M, van den Hoogen, B, Varsani, A, Vasilakis, N, Verbeek, M, von Bargen, S, Wada, J, Wahl, V, Walker, P, Wang, L, Wang, G, Wang, Y, Waqas, M, Wei, T, Wen, S, Whitfield, A, Williams, J, Wolf, Y, Wu, J, Xu, L, Yanagisawa, H, Yang, C, Yang, Z, Zerbini, F, Zhai, L, Zhang, Y, Zhang, S, Zhang, J, Zhang, Z, Zhou, X, Kuhn JH, Adkins S, Agwanda BR, Al Kubrusli R, Alkhovsky SV, Amarasinghe GK, Avsic-Zupanc T, Ayllon MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Basler CF, Bavari S, Beer M, Bejerman N, Bennett AJ, Bente DA, Bergeron E, Bird BH, Blair CD, Blasdell KR, Blystad DR, Bojko J, Borth WB, Bradfute S, Breyta R, Briese T, Brown PA, Brown JK, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Buttner C, Calisher CH, Cao MJ, Casas I, Chandran K, Charrel RN, Cheng Q, Chiaki Y, Chiapello M, Choi I, Ciuffo M, Clegg JCS, Crozier I, Dal Bo E, de la Torre JC, de Lamballerie X, de Swart RL, Debat H, Dheilly NM, Di Cicco E, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Dolnik O, Drebot MA, Drexler JF, Dundon WG, Duprex WP, Durrwald R, Dye JM, Easton AJ, Ebihara H, Elbeaino T, Ergunay K, Ferguson HW, Fooks AR, Forgia M, Formenty PBH, Franova J, Freitas-Astua J, Fu JJ, Furl S, Gago-Zachert S, Gao GF, Garcia ML, Garcia-Sastre A, Garrison AR, Gaskin T, Gonzalez JPJ, Griffiths A, Goldberg TL, Groschup MH, Gunther S, Hall RA, Hammond J, Han T, Hepojoki J, Hewson R, Hong J, Hong N, Hongo S, Horie M, Hu JS, Hu T, Hughes HR, Huttner F, Hyndman TH, Ilyas M, Jalkanen R, Jiang DH, Jonson GB, Junglen S, Kadono F, Kaukinen KH, Kawate M, Klempa B, Klingstrom J, Kobinger G, Koloniuk I, Kondo H, Koonin EV, Krupovic M, Kubota K, Kurath G, Laenen L, Lambert AJ, Langevin SL, Lee B, Lefkowitz EJ, Leroy EM, Li SR, Li LH, Li JR, Liu HZ, Lukashevich IS, Maes P, de Souza WM, Marklewitz M, Marshall SH, Marzano SYL, Massart S, McCauley JW, Melzer M, Mielke-Ehret N, Miller KM, Ming TJ, Mirazimi A, Mordecai GJ, Muhlbach HP, Muhlberger E, Naidu R, Natsuaki T, Navarro JA, Netesov SV, Neumann G, Nowotny N, Nunes MRT, Olmedo-Velarde A, Palacios G, Pallas V, Palyi B, Papa A, Paraskevopoulou S, Park AC, Parrish CR, Patterson DA, Pauvolid-Correa A, Paweska JT, Payne S, Peracchio C, Perez DR, Postler TS, Qi LY, Radoshitzky SR, Resende RO, Reyes CA, Rima BK, Luna GR, Romanowski V, Rota P, Rubbenstroth D, Rubino L, Runstadler JA, Sabanadzovic S, Sall AA, Salvato MS, Sang RS, Sasaya T, Schulze AD, Schwemmle M, Shi M, Shi XH, Shi ZL, Shimomoto Y, Shirako Y, Siddell SG, Simmonds P, Sironi M, Smagghe G, Smither S, Song JW, Spann K, Spengler JR, Stenglein MD, Stone DM, Sugano J, Suttle CA, Tabata A, Takada A, Takeuchi S, Tchouassi DP, Teffer A, Tesh RB, Thornburg NJ, Tomitaka Y, Tomonaga K, Tordo N, Torto B, Towner JS, Tsuda S, Tu CC, Turina M, Tzanetakis IE, Uchida J, Usugi T, Vaira AM, Vallino M, van den Hoogen B, Varsani A, Vasilakis N, Verbeek M, von Bargen S, Wada J, Wahl V, Walker PJ, Wang LF, Wang GP, Wang YX, Wang YQ, Waqas M, Wei TY, Wen SH, Whitfield AE, Williams JV, Wolf YI, Wu JX, Xu L, Yanagisawa H, Yang CX, Yang ZK, Zerbini FM, Zhai L, Zhang YZ, Zhang S, Zhang JG, Zhang Z, and Zhou XP

Abstract

In March 2021, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by four families (Aliusviridae, Crepuscuviridae, Myriaviridae, and Natareviridae), three subfamilies (Alpharhabdovirinae, Betarhabdovirinae, and Gammarhabdovirinae), 42 genera, and 200 species. Thirty-nine species were renamed and/or moved and seven species were abolished. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

Published
2021

3. 2020 taxonomic update for phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales

Author

Kuhn, J, Adkins, S, Alioto, D, Alkhovsky, S, Amarasinghe, G, Anthony, S, Avsic-Aupanc, T, Ayllon, M, Bahl, J, Balkema-Buschmann, A, Ballinger, M, Bartonicka, T, Basler, C, Bavari, S, Beer, M, Bente, D, Bergeron, E, Bird, B, Blair, C, Blasdell, K, Bradfute, S, Breyta, R, Briese, T, Brown, P, Buchholz, U, Buchmeier, M, Bukreyev, A, Burt, F, Buzkan, N, Calisher, C, Cao, M, Casas, I, Chamberlain, J, Chandran, K, Charrel, R, Chen, B, Chiumenti, M, Choi, I, Clegg, J, Crozier, I, da Graca, J, Dal Bo, E, Davila, A, de la Torre, J, de Lamballerie, X, de Swart, R, Di Bello, P, Di Paola, N, Di Serio, F, Dietzgen, R, Digiaro, M, Dolja, V, Dolnik, O, Drebot, M, Drexler, J, Durrwald, R, Dufkova, L, Dundon, W, Duprex, W, Dye, J, Easton, A, Ebihara, H, Elbeaino, T, Ergunay, K, Fernandes, J, Fooks, A, Formenty, P, Forth, L, Fouchier, R, Freitas-Astua, J, Gago-Zachert, S, Gao, G, Garcia, M, Garcia-Sastre, A, Garrison, A, Gbakima, A, Goldstein, T, Gonzalez, J, Griffiths, A, Groschup, M, Gunther, S, Guterres, A, Hall, R, Hammond, J, Hassan, M, Hepojoki, J, Hepojoki, S, Hetzel, U, Hewson, R, Hoffmann, B, Hongo, S, Hoper, D, Horie, M, Hughes, H, Hyndman, T, Jambai, A, Jardim, R, Jiang, D, Jin, Q, Jonson, G, Junglen, S, Karadag, S, Keller, K, Klempa, B, Klingstrom, J, Kobinger, G, Kondo, H, Koonin, E, Krupovic, M, Kurath, G, Kuzmin, I, Laenen, L, Lamb, R, Lambert, A, Langevin, S, Lee, B, Lemos, E, Leroy, E, Li, D, Li, J, Liang, M, Liu, W, Liu, Y, Lukashevich, I, Maes, P, de Souza, W, Marklewitz, M, Marshall, S, Martelli, G, Martin, R, Marzano, S, Massart, S, Mccauley, J, Mielke-Ehret, N, Minafra, A, Minutolo, M, Mirazimi, A, Muhlbach, H, Muhlberger, E, Naidu, R, Natsuaki, T, Navarro, B, Navarro, J, Netesov, S, Neumann, G, Nowotny, N, Nunes, M, Nylund, A, Okland, A, Oliveira, R, Palacios, G, Pallas, V, Palyi, B, Papa, A, Parrish, C, Pauvolid-Correa, A, Paweska, J, Payne, S, Perez, D, Pfaff, F, Radoshitzky, S, Aziz-ul, R, Ramos-Gonzalez, P, Resende, R, Reyes, C, Rima, B, Romanowski, V, Luna, G, Rota, P, Rubbenstroth, D, Runstadler, J, Ruzek, D, Sabanadzovic, S, Salat, J, Sall, A, Salvato, M, Sarpkaya, K, Sasaya, T, Schwemmle, M, Shabbir, M, Shi, X, Shi, Z, Shirako, Y, Simmonds, P, Sirmarovaa, J, Sironi, M, Smither, S, Smura, T, Song, J, Spann, K, Spengler, J, Stenglein, M, Stone, D, Strakova, P, Takada, A, Tesh, R, Thornburg, N, Tomonaga, K, Tordo, N, Towner, J, Turina, M, Tzanetakis, I, Ulrich, R, Vaira, A, van den Hoogen, B, Varsani, A, Vasilakis, N, Verbeek, M, Wahl, V, Walker, P, Wang, H, Wang, J, Wang, X, Wang, L, Wei, T, Wells, H, Whitfield, A, Williams, J, Wolf, Y, Wu, Z, Yang, X, Yu, X, Yutin, N, Zerbini, F, Zhang, T, Zhang, Y, Zhou, G, Zhou, X, Kuhn JH, Adkins S, Alioto D, Alkhovsky SV, Amarasinghe GK, Anthony SJ, Avsic-Aupanc T, Ayllon MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Bartonicka T, Basler C, Bavari S, Beer M, Bente DA, Bergeron E, Bird BH, Blair C, Blasdell KR, Bradfute SB, Breyta R, Briese T, Brown PA, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Buzkan N, Calisher CH, Cao MJ, Casas I, Chamberlain J, Chandran K, Charrel RN, Chen B, Chiumenti M, Choi I, Clegg JCS, Crozier I, da Graca JV, Dal Bo E, Davila AMR, de la Torre JC, de Lamballerie X, de Swart RL, Di Bello PL, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Dolja VV, Dolnik O, Drebot MA, Drexler JF, Durrwald R, Dufkova L, Dundon WG, Duprex WP, Dye JM, Easton AJ, Ebihara H, Elbeaino T, Ergunay K, Fernandes J, Fooks AR, Formenty PBH, Forth LF, Fouchier RAM, Freitas-Astua J, Gago-Zachert S, Gao GF, Garcia ML, Garcia-Sastre A, Garrison AR, Gbakima A, Goldstein T, Gonzalez JPJ, Griffiths A, Groschup MH, Gunther S, Guterres A, Hall RA, Hammond J, Hassan M, Hepojoki J, Hepojoki S, Hetzel U, Hewson R, Hoffmann B, Hongo S, Hoper D, Horie M, Hughes HR, Hyndman TH, Jambai A, Jardim R, Jiang DH, Jin Q, Jonson GB, Junglen S, Karadag S, Keller KE, Klempa B, Klingstrom J, Kobinger G, Kondo H, Koonin EV, Krupovic M, Kurath G, Kuzmin IV, Laenen L, Lamb RA, Lambert AJ, Langevin SL, Lee BH, Lemos ERS, Leroy EM, Li DX, Li JR, Liang MF, Liu WW, Liu Y, Lukashevich IS, Maes P, de Souza WM, Marklewitz M, Marshall SH, Martelli GP, Martin RR, Marzano SYL, Massart S, McCauley JW, Mielke-Ehret N, Minafra A, Minutolo M, Mirazimi A, Muhlbach HP, Muhlberger E, Naidu R, Natsuaki T, Navarro B, Navarro JA, Netesov SV, Neumann G, Nowotny N, Nunes MRT, Nylund A, Okland AL, Oliveira RC, Palacios G, Pallas V, Palyi B, Papa A, Parrish CR, Pauvolid-Correa A, Paweska JT, Payne S, Perez DR, Pfaff F, Radoshitzky SR, Aziz-ul Rahman, Ramos-Gonzalez PL, Resende RO, Reyes CA, Rima BK, Romanowski V, Luna GR, Rota P, Rubbenstroth D, Runstadler JA, Ruzek D, Sabanadzovic S, Salat J, Sall AA, Salvato MS, Sarpkaya K, Sasaya T, Schwemmle M, Shabbir MZ, Shi XH, Shi ZL, Shirako Y, Simmonds P, Sirmarovaa J, Sironi M, Smither S, Smura T, Song JW, Spann KM, Spengler JR, Stenglein MD, Stone DM, Strakova P, Takada A, Tesh RB, Thornburg NJ, Tomonaga K, Tordo N, Towner JS, Turina M, Tzanetakis I, Ulrich RG, Vaira AM, van den Hoogen B, Varsani A, Vasilakis N, Verbeek M, Wahl V, Walker PJ, Wang H, Wang JW, Wang XF, Wang LF, Wei TY, Wells H, Whitfield AE, Williams JV, Wolf YI, Wu ZQ, Yang X, Yu XJ, Yutin N, Zerbini FM, Zhang T, Zhang YZ, Zhou GH, Zhou XP, Kuhn, J, Adkins, S, Alioto, D, Alkhovsky, S, Amarasinghe, G, Anthony, S, Avsic-Aupanc, T, Ayllon, M, Bahl, J, Balkema-Buschmann, A, Ballinger, M, Bartonicka, T, Basler, C, Bavari, S, Beer, M, Bente, D, Bergeron, E, Bird, B, Blair, C, Blasdell, K, Bradfute, S, Breyta, R, Briese, T, Brown, P, Buchholz, U, Buchmeier, M, Bukreyev, A, Burt, F, Buzkan, N, Calisher, C, Cao, M, Casas, I, Chamberlain, J, Chandran, K, Charrel, R, Chen, B, Chiumenti, M, Choi, I, Clegg, J, Crozier, I, da Graca, J, Dal Bo, E, Davila, A, de la Torre, J, de Lamballerie, X, de Swart, R, Di Bello, P, Di Paola, N, Di Serio, F, Dietzgen, R, Digiaro, M, Dolja, V, Dolnik, O, Drebot, M, Drexler, J, Durrwald, R, Dufkova, L, Dundon, W, Duprex, W, Dye, J, Easton, A, Ebihara, H, Elbeaino, T, Ergunay, K, Fernandes, J, Fooks, A, Formenty, P, Forth, L, Fouchier, R, Freitas-Astua, J, Gago-Zachert, S, Gao, G, Garcia, M, Garcia-Sastre, A, Garrison, A, Gbakima, A, Goldstein, T, Gonzalez, J, Griffiths, A, Groschup, M, Gunther, S, Guterres, A, Hall, R, Hammond, J, Hassan, M, Hepojoki, J, Hepojoki, S, Hetzel, U, Hewson, R, Hoffmann, B, Hongo, S, Hoper, D, Horie, M, Hughes, H, Hyndman, T, Jambai, A, Jardim, R, Jiang, D, Jin, Q, Jonson, G, Junglen, S, Karadag, S, Keller, K, Klempa, B, Klingstrom, J, Kobinger, G, Kondo, H, Koonin, E, Krupovic, M, Kurath, G, Kuzmin, I, Laenen, L, Lamb, R, Lambert, A, Langevin, S, Lee, B, Lemos, E, Leroy, E, Li, D, Li, J, Liang, M, Liu, W, Liu, Y, Lukashevich, I, Maes, P, de Souza, W, Marklewitz, M, Marshall, S, Martelli, G, Martin, R, Marzano, S, Massart, S, Mccauley, J, Mielke-Ehret, N, Minafra, A, Minutolo, M, Mirazimi, A, Muhlbach, H, Muhlberger, E, Naidu, R, Natsuaki, T, Navarro, B, Navarro, J, Netesov, S, Neumann, G, Nowotny, N, Nunes, M, Nylund, A, Okland, A, Oliveira, R, Palacios, G, Pallas, V, Palyi, B, Papa, A, Parrish, C, Pauvolid-Correa, A, Paweska, J, Payne, S, Perez, D, Pfaff, F, Radoshitzky, S, Aziz-ul, R, Ramos-Gonzalez, P, Resende, R, Reyes, C, Rima, B, Romanowski, V, Luna, G, Rota, P, Rubbenstroth, D, Runstadler, J, Ruzek, D, Sabanadzovic, S, Salat, J, Sall, A, Salvato, M, Sarpkaya, K, Sasaya, T, Schwemmle, M, Shabbir, M, Shi, X, Shi, Z, Shirako, Y, Simmonds, P, Sirmarovaa, J, Sironi, M, Smither, S, Smura, T, Song, J, Spann, K, Spengler, J, Stenglein, M, Stone, D, Strakova, P, Takada, A, Tesh, R, Thornburg, N, Tomonaga, K, Tordo, N, Towner, J, Turina, M, Tzanetakis, I, Ulrich, R, Vaira, A, van den Hoogen, B, Varsani, A, Vasilakis, N, Verbeek, M, Wahl, V, Walker, P, Wang, H, Wang, J, Wang, X, Wang, L, Wei, T, Wells, H, Whitfield, A, Williams, J, Wolf, Y, Wu, Z, Yang, X, Yu, X, Yutin, N, Zerbini, F, Zhang, T, Zhang, Y, Zhou, G, Zhou, X, Kuhn JH, Adkins S, Alioto D, Alkhovsky SV, Amarasinghe GK, Anthony SJ, Avsic-Aupanc T, Ayllon MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Bartonicka T, Basler C, Bavari S, Beer M, Bente DA, Bergeron E, Bird BH, Blair C, Blasdell KR, Bradfute SB, Breyta R, Briese T, Brown PA, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Buzkan N, Calisher CH, Cao MJ, Casas I, Chamberlain J, Chandran K, Charrel RN, Chen B, Chiumenti M, Choi I, Clegg JCS, Crozier I, da Graca JV, Dal Bo E, Davila AMR, de la Torre JC, de Lamballerie X, de Swart RL, Di Bello PL, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Dolja VV, Dolnik O, Drebot MA, Drexler JF, Durrwald R, Dufkova L, Dundon WG, Duprex WP, Dye JM, Easton AJ, Ebihara H, Elbeaino T, Ergunay K, Fernandes J, Fooks AR, Formenty PBH, Forth LF, Fouchier RAM, Freitas-Astua J, Gago-Zachert S, Gao GF, Garcia ML, Garcia-Sastre A, Garrison AR, Gbakima A, Goldstein T, Gonzalez JPJ, Griffiths A, Groschup MH, Gunther S, Guterres A, Hall RA, Hammond J, Hassan M, Hepojoki J, Hepojoki S, Hetzel U, Hewson R, Hoffmann B, Hongo S, Hoper D, Horie M, Hughes HR, Hyndman TH, Jambai A, Jardim R, Jiang DH, Jin Q, Jonson GB, Junglen S, Karadag S, Keller KE, Klempa B, Klingstrom J, Kobinger G, Kondo H, Koonin EV, Krupovic M, Kurath G, Kuzmin IV, Laenen L, Lamb RA, Lambert AJ, Langevin SL, Lee BH, Lemos ERS, Leroy EM, Li DX, Li JR, Liang MF, Liu WW, Liu Y, Lukashevich IS, Maes P, de Souza WM, Marklewitz M, Marshall SH, Martelli GP, Martin RR, Marzano SYL, Massart S, McCauley JW, Mielke-Ehret N, Minafra A, Minutolo M, Mirazimi A, Muhlbach HP, Muhlberger E, Naidu R, Natsuaki T, Navarro B, Navarro JA, Netesov SV, Neumann G, Nowotny N, Nunes MRT, Nylund A, Okland AL, Oliveira RC, Palacios G, Pallas V, Palyi B, Papa A, Parrish CR, Pauvolid-Correa A, Paweska JT, Payne S, Perez DR, Pfaff F, Radoshitzky SR, Aziz-ul Rahman, Ramos-Gonzalez PL, Resende RO, Reyes CA, Rima BK, Romanowski V, Luna GR, Rota P, Rubbenstroth D, Runstadler JA, Ruzek D, Sabanadzovic S, Salat J, Sall AA, Salvato MS, Sarpkaya K, Sasaya T, Schwemmle M, Shabbir MZ, Shi XH, Shi ZL, Shirako Y, Simmonds P, Sirmarovaa J, Sironi M, Smither S, Smura T, Song JW, Spann KM, Spengler JR, Stenglein MD, Stone DM, Strakova P, Takada A, Tesh RB, Thornburg NJ, Tomonaga K, Tordo N, Towner JS, Turina M, Tzanetakis I, Ulrich RG, Vaira AM, van den Hoogen B, Varsani A, Vasilakis N, Verbeek M, Wahl V, Walker PJ, Wang H, Wang JW, Wang XF, Wang LF, Wei TY, Wells H, Whitfield AE, Williams JV, Wolf YI, Wu ZQ, Yang X, Yu XJ, Yutin N, Zerbini FM, Zhang T, Zhang YZ, Zhou GH, and Zhou XP

Abstract

In March 2020, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. At the genus rank, 20 new genera were added, two were deleted, one was moved, and three were renamed. At the species rank, 160 species were added, four were deleted, ten were moved and renamed, and 30 species were renamed. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

Published
2020

4. Recapitulation of virus-mediated DNA transfer in plants

Author

Noris E, Catoni M., Vaira AM, Matic S, Soleimani, and Accotto G.P.

Subjects
fungi, food and beverages, no key words
Abstract

The strict interactions established between viruses and their hosts makes them excellent candidates to mediate horizontal gene transfer. Historical events of exchange of nucleic acids between a host organism and a virus have become evident following genomic studies, but virus-mediated horizontal transfer is considered to occur rarely in nature, and be relevant only in evolutionary time. We previously observed the spontaneous formation of circular hybrid DNA molecules (minicircles) during the infection of Beta vulgaris plants by a single-stranded DNA virus belonging to the Geminiviridae family, the Beet curly top Iran virus (BCTIV). These DNA minicircles can replicate systemically in BCTIV-infected plants, are encapsidated in viral particles and can also be transcribed, being therefore optimal candidates to mediate transfer of DNA elements from one host to plants that can be infected by the same virus. Conclusively, we document in real time the initial steps of a possible path of virus-mediated horizontal transfer of chromosomal DNA between plant species. This work demonstrates that, in specific virus-host combinations, horizontal gene transfer could be much more frequent than previously thought.

Published
2019

7. Mutation of a chloroplast targeting signal in Alternanthera mosaic virus TGB3 impairs cell-to-cell movement and eliminates long distance virus movement

Author

LIM H-S, VAIRA AM, BAE H, BRAGG JN, RUZIN SE, BAUCHAN GR, DIENELT MM, OWENS RA, and HAMMOND J.

Subjects
TGB, Alternanthera mosaic virus, Movimento dei virus, cloroplasti
Abstract

Cell-to-cell movement of potexviruses requires coordinated action of the coat protein and triple gene block (TGB) proteins. The structural properties of Alternanthera mosaic virus (AltMV) TGB3 were examined by methods differentiating between signal peptides and transmembrane domains, and its subcellular localization was studied by Agrobacterium-mediated transient expression and confocal microscopy. Unlike potato virus X (PVX) TGB3, AltMV TGB3 was not associated with the endoplasmic reticulum, and accumulated preferentially in mesophyll cells. Deletion and sitespecific mutagenesis revealed an internal signal VL(17,18) of TGB3 essential for chloroplast localization, and either deletion of the TGB3 start codon or alteration of the chloroplastlocalization signal limited cell-to-cell movement to the epidermis, yielding a virus that was unable to move into the mesophyll layer. Overexpression of AltMV TGB3 from either AltMV or PVX infectious clones resulted in veinal necrosis and vesiculation at the chloroplast membrane, a cytopathology not observed in wild-type infections. The distinctive mesophyll and chloroplast localization of AltMV TGB3 highlights the critical role played by mesophyll targeting in virus longdistance movement within plants.

Published
2010

15. Virus diseases of Japanese anemone

Author

Lisa V, Vaira AM, Milne, Masenga V, and Lesemann DE

Abstract

Two viruses, Tobacco rattle virus (TRV), genus Tobravirus and Raspberry ringspot virus (RRSV), genus Nepovirus, have been isolated from plants of Japanese anemone (Anemone x hybrida = Anemone hupehensis var. japonica x A. vitifolia) growing in nurseries in southern Germany and in north western Italy. TRV was detected, in the samples checked in Italy, by one-step RT-PCR using TRV-specific primers and total RNA as template. On indicator plants, the four isolates studied induced disease characteristic of TRV infection. Two of the isolates formed typical tobravirus particles. The other two caused milder symptoms on indicators and no virus particles were seen in these plants; these isolates were assumed to be of the MN-type, lacking the gene for the coat protein. RRSV was detected in one sample tested in Germany and in one of the samples collected in Italy. This last was freed from mixed infection with TRV by using Chenopodium quinoa as differential host. The experimental host range of both German and Italian isolates was in agreement with what is known for RRSV. Both isolates were identified by electron microscopy decoration, using antisera to five RRSV isolates. In comparative tests, titres of four of these antisera were almost identical for both isolates, while the fifth antiserum, to the Italian isolate, differentiated between the two isolates. No reaction occurred with antisera to 22 other nepoviruses, four fabaviruses and five comoviruses. A major coat protein of Mr slightly over 50 kDa and two RNA species of about 8 kb (RNA1) and 4 kb (RNA2) were found for the Italian isolate.

Published
2002

17. Tomato infectious chlorosis virus caused leaf yellowing and reddening of tomato in Italy

Author

Vaira Am., Accotto Gp., Vecchiati M., and Bragaloni M.

Abstract

Since autumn 2000 severe and widespread chlorosis, sometimes associated with redness, has been observed in greenhouse tomatoes in different regions of Italy. A total of 104 samples were analysed for Tomato infectious chlorosis virus (TICV), by a one-step RT-PCR procedure. In some areas of central Italy and Sardinia, the symptom was consistently correlated with the presence of TICV. The RT-PCR procedure enabled rapid and reliable detection of TICV from field samples. Sequence analysis of the amplified 501-bp fragment, part of the HSP70 coding region, revealed an identity of 99% with the TICV sequence in the GenBank database. A digoxigenin-labelled DNA probe was also produced and successfully tested in dot blot assays. This is the first report of TICV causing epidemics in Europe.

Published
2002

21. REAL-TIME QUANTITATIVE PCR: A NOVEL TENTATIVE APPROACH FOR EVALUATING THE NUMBER OF INTEGRATION EVENTS IN TRANSFORMED PLANTS EARLY AFTER REGENERATION

Author

MASON G, ACCOTTO GP, NERVO G, and VAIRA AM

Subjects
copy number, fungi, quantitative PCR, food and beverages, Real-Time PCR, transgenic plants
Abstract

When new transgenic plants are obtained following genetic transformation, the putative transformed lines must be checked for the presence of the new genes and, as soon as possible, the number of integrated copies must be estimated. This is normally achieved by Southern analysis, a time-consuming technique which requires several days and several micrograms of plant DNA. In order to overcome these two major constraints and therefore obtain information on the number of integration events in each line early after regeneration, we have tested a novel approach by using a quantitative Real-Time PCR assay. The rationale of the approach consists in the possibility of estimating the transgene copy number of a new plant line by comparison with another line which contains a known number of integrated copies. Two genes must be quantified in parallel experiments, a plant gene and the transgene. This is achieved using PCR reagents (primers and probe) specific for the plant gene, and others specific for the transgene. The plant material used consisted of tomato lines previously transformed with the N gene of Tomato spotted wilt virus: primers and probe specific for a tomato gene (APX), and for the N transgene were designed. As an alternative to the APX-specific reagents, generic plant reagents (t-Leu) were also tested for the quantification of the plant DNA. Preliminary results showed that discrimination between one and two or more integration events is possible, when accurate data are obtained. To improve the accuracy of the measurements a duplex approach, where the two genes are simultaneously quantified in the same reaction tube, is under investigation and data will be presented. The Real-Time quantitative PCR technique requires much less plant DNA than Southern analysis, and therefore it can be performed early after regeneration, when the availability of plant material is limited. Furthermore, it is completed in a few hours. At the present time, however, it cannot be considered as a complete substitute of Southern blots. This new technique can be used for selecting early and rapidly the lines which are probably more interesting than others in the breeding procedures.

Published
2001

25. Amino acids in the capsid protein of TYLCV that are crucial for systemic infection, particle formation, and insect transmission

Author

Noris E, Vaira AM, Caciagli P, Masenga V, Gronenborn B, and Accotto GP.

Subjects
fungi, food and beverages
Abstract

A functional capsid protein (CP) is essential for host plant infection and insect transmission in monopartite geminiviruses. We studied two defective genomic DNAs of tomato yellow leaf curl virus (TYLCV), Sic and SicRcv. Sie, cloned from a field-infected tomato, was not infectious, whereas SicRcv, which spontaneously originated from Sie, was infectious but not whitefly transmissible. A single amino acid change in the CP was found to be responsible for restoring infectivity. When the amino acid sequences of the CPs of Sic and SicRcv were compared with that of a closely related wild-type virus (TYLCV-Sar), differences were found in the following positions: 129 (P in Sic and SicRcv, Q in Sar), 134 (Q in Sic and Sar, H in SicRcv) and 152 (E in Sic and SicRcv, D in Sar). We constructed TYLCV-Sar variants containing the eight possible amino acid combinations in those three positions and tested them for infectivity and transmissibility. QQD, QQE, QHD, and QHE had a wild-type phenotype, whereas PHD and PHE were infectious but nontransmissible. PQD and PQE mutants were not infectious; however, they replicated and accumulated CP, but not virions, in Nicotiana benthamiana leaf discs. The Q129P replacement is a nonconservative change, which may drastically alter the secondary structure of the CP and affect its ability to form the capsid. The additional Q134H change, however, appeared to compensate for the structural modification. Sequence comparisons among whitefly-transmitted geminiviruses in terms of the CP region studied showed that combinations other than QQD are present in several cases, but never with a P129.

Published
1998

42. Exogenous Application of dsRNA for Protection against Tomato Leaf Curl New Delhi Virus.

Author

Frascati F, Rotunno S, Accotto GP, Noris E, Vaira AM, and Miozzi L

Subjects
Humans, RNA Interference, RNA, Double-Stranded genetics, Plant Diseases, Begomovirus genetics, Geminiviridae genetics
Abstract

Tomato leaf curl New Delhi virus (ToLCNDV) is an emerging plant pathogen, fast spreading in Asian and Mediterranean regions, and is considered the most harmful geminivirus of cucurbits in the Mediterranean. ToLCNDV infects several plant and crop species from a range of families, including Solanaceae, Cucurbitaceae, Fabaceae, Malvaceae and Euphorbiaceae. Up to now, protection from ToLCNDV infection has been achieved mainly by RNAi-mediated transgenic resistance, and non-transgenic fast-developing approaches are an urgent need. Plant protection by the delivery of dsRNAs homologous to a pathogen target sequence is an RNA interference-based biotechnological approach that avoids cultivating transgenic plants and has been already shown effective against RNA viruses and viroids. However, the efficacy of this approach against DNA viruses, particularly Geminiviridae family, is still under study. Here, the protection induced by exogenous application of a chimeric dsRNA targeting all the coding regions of the ToLCNDV DNA-A was evaluated in zucchini, an important crop strongly affected by this virus. A reduction in the number of infected plants and a delay in symptoms appearance, associated with a tendency of reduction in the viral titer, was observed in the plants treated with the chimeric dsRNA, indicating that the treatment is effective against geminiviruses but requires further optimization. Limits of RNAi-based vaccinations against geminiviruses and possible causes are discussed.

Published
2024
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43. International Trade and Local Effects of Viral and Bacterial Diseases in Ornamental Plants.

Author

Hammond J, Huang Q, Jordan R, Meekes E, Fox A, Vazquez-Iglesias I, Vaira AM, Copetta A, and Delmiglio C

Subjects
Humans, Internationality, Crops, Agricultural, Seeds, Commerce, Bacterial Infections
Abstract

Since the 1950s, there have been major changes in the scope, value, and organization of the ornamental plant industry. With fewer individual producers and a strong trend toward consolidation and globalization, increasing quantities of diverse plant genera and species are being shipped internationally. Many more ornamentals are propagated vegetatively instead of by seed, further contributing to disease spread. These factors have led to global movement of pathogens to countries where they were not formerly known. The emergence of some previously undescribed pathogens has been facilitated by high-throughput sequencing, but biological studies are often lacking, so their roles in economic diseases are not yet known. Case studies of diseases in selected ornamentals discuss the factors involved in their spread, control measures to reduce their economic impact, and some potential effects on agronomic crops. Advances in diagnostic techniques are discussed, and parallels are drawn to the international movement of human diseases.

Published
2023
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44. 2022 taxonomic update of phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales.

Author

Kuhn JH, Adkins S, Alkhovsky SV, Avšič-Županc T, Ayllón MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Bandte M, Beer M, Bejerman N, Bergeron É, Biedenkopf N, Bigarré L, Blair CD, Blasdell KR, Bradfute SB, Briese T, Brown PA, Bruggmann R, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Büttner C, Calisher CH, Candresse T, Carson J, Casas I, Chandran K, Charrel RN, Chiaki Y, Crane A, Crane M, Dacheux L, Bó ED, de la Torre JC, de Lamballerie X, de Souza WM, de Swart RL, Dheilly NM, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Drexler JF, Duprex WP, Dürrwald R, Easton AJ, Elbeaino T, Ergünay K, Feng G, Feuvrier C, Firth AE, Fooks AR, Formenty PBH, Freitas-Astúa J, Gago-Zachert S, García ML, García-Sastre A, Garrison AR, Godwin SE, Gonzalez JJ, de Bellocq JG, Griffiths A, Groschup MH, Günther S, Hammond J, Hepojoki J, Hierweger MM, Hongō S, Horie M, Horikawa H, Hughes HR, Hume AJ, Hyndman TH, Jiāng D, Jonson GB, Junglen S, Kadono F, Karlin DG, Klempa B, Klingström J, Koch MC, Kondō H, Koonin EV, Krásová J, Krupovic M, Kubota K, Kuzmin IV, Laenen L, Lambert AJ, Lǐ J, Li JM, Lieffrig F, Lukashevich IS, Luo D, Maes P, Marklewitz M, Marshall SH, Marzano SL, McCauley JW, Mirazimi A, Mohr PG, Moody NJG, Morita Y, Morrison RN, Mühlberger E, Naidu R, Natsuaki T, Navarro JA, Neriya Y, Netesov SV, Neumann G, Nowotny N, Ochoa-Corona FM, Palacios G, Pallandre L, Pallás V, Papa A, Paraskevopoulou S, Parrish CR, Pauvolid-Corrêa A, Pawęska JT, Pérez DR, Pfaff F, Plemper RK, Postler TS, Pozet F, Radoshitzky SR, Ramos-González PL, Rehanek M, Resende RO, Reyes CA, Romanowski V, Rubbenstroth D, Rubino L, Rumbou A, Runstadler JA, Rupp M, Sabanadzovic S, Sasaya T, Schmidt-Posthaus H, Schwemmle M, Seuberlich T, Sharpe SR, Shi M, Sironi M, Smither S, Song JW, Spann KM, Spengler JR, Stenglein MD, Takada A, Tesh RB, Těšíková J, Thornburg NJ, Tischler ND, Tomitaka Y, Tomonaga K, Tordo N, Tsunekawa K, Turina M, Tzanetakis IE, Vaira AM, van den Hoogen B, Vanmechelen B, Vasilakis N, Verbeek M, von Bargen S, Wada J, Wahl V, Walker PJ, Whitfield AE, Williams JV, Wolf YI, Yamasaki J, Yanagisawa H, Ye G, Zhang YZ, and Økland AL

Subjects
Humans, Phylogeny, Mononegavirales genetics, Viruses
Abstract

In March 2022, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by two new families (bunyaviral Discoviridae and Tulasviridae), 41 new genera, and 98 new species. Three hundred forty-nine species were renamed and/or moved. The accidentally misspelled names of seven species were corrected. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV., (© 2022. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.)

Published
2022
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45. Correction to: 2021 Taxonomic update of phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales.

Author

Kuhn JH, Adkins S, Agwanda BR, Al Kubrusli R, Alkhovsky SV, Amarasinghe GK, Avšič-Županc T, Ayllón MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Basler CF, Bavari S, Beer M, Bejerman N, Bennett AJ, Bente DA, Bergeron É, Bird BH, Blair CD, Blasdell KR, Blystad DR, Bojko J, Borth WB, Bradfute S, Breyta R, Briese T, Brown PA, Brown JK, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Büttner C, Calisher CH, Cao M, Casas I, Chandran K, Charrel RN, Cheng Q, Chiaki Y, Chiapello M, Choi IR, Ciuffo M, Clegg JCS, Crozier I, Dal Bó E, de la Torre JC, de Lamballerie X, de Swart RL, Debat H, Dheilly NM, Di Cicco E, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Dolnik O, Drebot MA, Drexler JF, Dundon WG, Duprex WP, Dürrwald R, Dye JM, Easton AJ, Ebihara H, Elbeaino T, Ergünay K, Ferguson HW, Fooks AR, Forgia M, Formenty PBH, Fránová J, Freitas-Astúa J, Fu J, Fürl S, Gago-Zachert S, Gāo GF, García ML, García-Sastre A, Garrison AR, Gaskin T, Gonzalez JJ, Griffiths A, Goldberg TL, Groschup MH, Günther S, Hall RA, Hammond J, Han T, Hepojoki J, Hewson R, Hong J, Hong N, Hongo S, Horie M, Hu JS, Hu T, Hughes HR, Hüttner F, Hyndman TH, Ilyas M, Jalkanen R, Jiāng D, Jonson GB, Junglen S, Kadono F, Kaukinen KH, Kawate M, Klempa B, Klingström J, Kobinger G, Koloniuk I, Kondō H, Koonin EV, Krupovic M, Kubota K, Kurath G, Laenen L, Lambert AJ, Langevin SL, Lee B, Lefkowitz EJ, Leroy EM, Li S, Li L, Lǐ J, Liu H, Lukashevich IS, Maes P, de Souza WM, Marklewitz M, Marshall SH, Marzano SL, Massart S, McCauley JW, Melzer M, Mielke-Ehret N, Miller KM, Ming TJ, Mirazimi A, Mordecai GJ, Mühlbach HP, Mühlberger E, Naidu R, Natsuaki T, Navarro JA, Netesov SV, Neumann G, Nowotny N, Nunes MRT, Olmedo-Velarde A, Palacios G, Pallás V, Pályi B, Papa A, Paraskevopoulou S, Park AC, Parrish CR, Patterson DA, Pauvolid-Corrêa A, Pawęska JT, Payne S, Peracchio C, Pérez DR, Postler TS, Qi L, Radoshitzky SR, Resende RO, Reyes CA, Rima BK, Luna GR, Romanowski V, Rota P, Rubbenstroth D, Rubino L, Runstadler JA, Sabanadzovic S, Sall AA, Salvato MS, Sang R, Sasaya T, Schulze AD, Schwemmle M, Shi M, Shí X, Shí Z, Shimomoto Y, Shirako Y, Siddell SG, Simmonds P, Sironi M, Smagghe G, Smither S, Song JW, Spann K, Spengler JR, Stenglein MD, Stone DM, Sugano J, Suttle CA, Tabata A, Takada A, Takeuchi S, Tchouassi DP, Teffer A, Tesh RB, Thornburg NJ, Tomitaka Y, Tomonaga K, Tordo N, Torto B, Towner JS, Tsuda S, Tu C, Turina M, Tzanetakis IE, Uchida J, Usugi T, Vaira AM, Vallino M, van den Hoogen B, Varsani A, Vasilakis N, Verbeek M, von Bargen S, Wada J, Wahl V, Walker PJ, Wang LF, Wang G, Wang Y, Wang Y, Waqas M, Wèi T, Wen S, Whitfield AE, Williams JV, Wolf YI, Wu J, Xu L, Yanagisawa H, Yang C, Yang Z, Zerbini FM, Zhai L, Zhang YZ, Zhang S, Zhang J, Zhang Z, and Zhou X

Published
2021
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46. 2021 Taxonomic update of phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales.

Author

Kuhn JH, Adkins S, Agwanda BR, Al Kubrusli R, Alkhovsky SV, Amarasinghe GK, Avšič-Županc T, Ayllón MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Basler CF, Bavari S, Beer M, Bejerman N, Bennett AJ, Bente DA, Bergeron É, Bird BH, Blair CD, Blasdell KR, Blystad DR, Bojko J, Borth WB, Bradfute S, Breyta R, Briese T, Brown PA, Brown JK, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Büttner C, Calisher CH, Cao M, Casas I, Chandran K, Charrel RN, Cheng Q, Chiaki Y, Chiapello M, Choi IR, Ciuffo M, Clegg JCS, Crozier I, Dal Bó E, de la Torre JC, de Lamballerie X, de Swart RL, Debat H, Dheilly NM, Di Cicco E, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Dolnik O, Drebot MA, Drexler JF, Dundon WG, Duprex WP, Dürrwald R, Dye JM, Easton AJ, Ebihara H, Elbeaino T, Ergünay K, Ferguson HW, Fooks AR, Forgia M, Formenty PBH, Fránová J, Freitas-Astúa J, Fu J, Fürl S, Gago-Zachert S, Gāo GF, García ML, García-Sastre A, Garrison AR, Gaskin T, Gonzalez JJ, Griffiths A, Goldberg TL, Groschup MH, Günther S, Hall RA, Hammond J, Han T, Hepojoki J, Hewson R, Hong J, Hong N, Hongo S, Horie M, Hu JS, Hu T, Hughes HR, Hüttner F, Hyndman TH, Ilyas M, Jalkanen R, Jiāng D, Jonson GB, Junglen S, Kadono F, Kaukinen KH, Kawate M, Klempa B, Klingström J, Kobinger G, Koloniuk I, Kondō H, Koonin EV, Krupovic M, Kubota K, Kurath G, Laenen L, Lambert AJ, Langevin SL, Lee B, Lefkowitz EJ, Leroy EM, Li S, Li L, Lǐ J, Liu H, Lukashevich IS, Maes P, de Souza WM, Marklewitz M, Marshall SH, Marzano SL, Massart S, McCauley JW, Melzer M, Mielke-Ehret N, Miller KM, Ming TJ, Mirazimi A, Mordecai GJ, Mühlbach HP, Mühlberger E, Naidu R, Natsuaki T, Navarro JA, Netesov SV, Neumann G, Nowotny N, Nunes MRT, Olmedo-Velarde A, Palacios G, Pallás V, Pályi B, Papa A, Paraskevopoulou S, Park AC, Parrish CR, Patterson DA, Pauvolid-Corrêa A, Pawęska JT, Payne S, Peracchio C, Pérez DR, Postler TS, Qi L, Radoshitzky SR, Resende RO, Reyes CA, Rima BK, Luna GR, Romanowski V, Rota P, Rubbenstroth D, Rubino L, Runstadler JA, Sabanadzovic S, Sall AA, Salvato MS, Sang R, Sasaya T, Schulze AD, Schwemmle M, Shi M, Shí X, Shí Z, Shimomoto Y, Shirako Y, Siddell SG, Simmonds P, Sironi M, Smagghe G, Smither S, Song JW, Spann K, Spengler JR, Stenglein MD, Stone DM, Sugano J, Suttle CA, Tabata A, Takada A, Takeuchi S, Tchouassi DP, Teffer A, Tesh RB, Thornburg NJ, Tomitaka Y, Tomonaga K, Tordo N, Torto B, Towner JS, Tsuda S, Tu C, Turina M, Tzanetakis IE, Uchida J, Usugi T, Vaira AM, Vallino M, van den Hoogen B, Varsani A, Vasilakis N, Verbeek M, von Bargen S, Wada J, Wahl V, Walker PJ, Wang LF, Wang G, Wang Y, Wang Y, Waqas M, Wèi T, Wen S, Whitfield AE, Williams JV, Wolf YI, Wu J, Xu L, Yanagisawa H, Yang C, Yang Z, Zerbini FM, Zhai L, Zhang YZ, Zhang S, Zhang J, Zhang Z, and Zhou X

Subjects
Humans, Mononegavirales, Viruses
Abstract

In March 2021, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by four families (Aliusviridae, Crepuscuviridae, Myriaviridae, and Natareviridae), three subfamilies (Alpharhabdovirinae, Betarhabdovirinae, and Gammarhabdovirinae), 42 genera, and 200 species. Thirty-nine species were renamed and/or moved and seven species were abolished. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV., (© 2021. This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.)

Published
2021
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47. 2020 taxonomic update for phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales.

Author

Kuhn JH, Adkins S, Alioto D, Alkhovsky SV, Amarasinghe GK, Anthony SJ, Avšič-Županc T, Ayllón MA, Bahl J, Balkema-Buschmann A, Ballinger MJ, Bartonička T, Basler C, Bavari S, Beer M, Bente DA, Bergeron É, Bird BH, Blair C, Blasdell KR, Bradfute SB, Breyta R, Briese T, Brown PA, Buchholz UJ, Buchmeier MJ, Bukreyev A, Burt F, Buzkan N, Calisher CH, Cao M, Casas I, Chamberlain J, Chandran K, Charrel RN, Chen B, Chiumenti M, Choi IR, Clegg JCS, Crozier I, da Graça JV, Dal Bó E, Dávila AMR, de la Torre JC, de Lamballerie X, de Swart RL, Di Bello PL, Di Paola N, Di Serio F, Dietzgen RG, Digiaro M, Dolja VV, Dolnik O, Drebot MA, Drexler JF, Dürrwald R, Dufkova L, Dundon WG, Duprex WP, Dye JM, Easton AJ, Ebihara H, Elbeaino T, Ergünay K, Fernandes J, Fooks AR, Formenty PBH, Forth LF, Fouchier RAM, Freitas-Astúa J, Gago-Zachert S, Gāo GF, García ML, García-Sastre A, Garrison AR, Gbakima A, Goldstein T, Gonzalez JJ, Griffiths A, Groschup MH, Günther S, Guterres A, Hall RA, Hammond J, Hassan M, Hepojoki J, Hepojoki S, Hetzel U, Hewson R, Hoffmann B, Hongo S, Höper D, Horie M, Hughes HR, Hyndman TH, Jambai A, Jardim R, Jiāng D, Jin Q, Jonson GB, Junglen S, Karadağ S, Keller KE, Klempa B, Klingström J, Kobinger G, Kondō H, Koonin EV, Krupovic M, Kurath G, Kuzmin IV, Laenen L, Lamb RA, Lambert AJ, Langevin SL, Lee B, Lemos ERS, Leroy EM, Li D, Lǐ J, Liang M, Liú W, Liú Y, Lukashevich IS, Maes P, Marciel de Souza W, Marklewitz M, Marshall SH, Martelli GP, Martin RR, Marzano SL, Massart S, McCauley JW, Mielke-Ehret N, Minafra A, Minutolo M, Mirazimi A, Mühlbach HP, Mühlberger E, Naidu R, Natsuaki T, Navarro B, Navarro JA, Netesov SV, Neumann G, Nowotny N, Nunes MRT, Nylund A, Økland AL, Oliveira RC, Palacios G, Pallas V, Pályi B, Papa A, Parrish CR, Pauvolid-Corrêa A, Pawęska JT, Payne S, Pérez DR, Pfaff F, Radoshitzky SR, Rahman AU, Ramos-González PL, Resende RO, Reyes CA, Rima BK, Romanowski V, Robles Luna G, Rota P, Rubbenstroth D, Runstadler JA, Ruzek D, Sabanadzovic S, Salát J, Sall AA, Salvato MS, Sarpkaya K, Sasaya T, Schwemmle M, Shabbir MZ, Shí X, Shí Z, Shirako Y, Simmonds P, Širmarová J, Sironi M, Smither S, Smura T, Song JW, Spann KM, Spengler JR, Stenglein MD, Stone DM, Straková P, Takada A, Tesh RB, Thornburg NJ, Tomonaga K, Tordo N, Towner JS, Turina M, Tzanetakis I, Ulrich RG, Vaira AM, van den Hoogen B, Varsani A, Vasilakis N, Verbeek M, Wahl V, Walker PJ, Wang H, Wang J, Wang X, Wang LF, Wèi T, Wells H, Whitfield AE, Williams JV, Wolf YI, Wú Z, Yang X, Yáng X, Yu X, Yutin N, Zerbini FM, Zhang T, Zhang YZ, Zhou G, and Zhou X

Subjects
Terminology as Topic, Mononegavirales classification
Abstract

In March 2020, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. At the genus rank, 20 new genera were added, two were deleted, one was moved, and three were renamed. At the species rank, 160 species were added, four were deleted, ten were moved and renamed, and 30 species were renamed. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.

Published
2020
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48. The Induction of an Effective dsRNA-Mediated Resistance Against Tomato Spotted Wilt Virus by Exogenous Application of Double-Stranded RNA Largely Depends on the Selection of the Viral RNA Target Region.

Author

Tabein S, Jansen M, Noris E, Vaira AM, Marian D, Behjatnia SAA, Accotto GP, and Miozzi L

Abstract

Tomato spotted wilt virus (TSWV) is a devastating plant pathogen, causing huge crop losses worldwide. Unfortunately, due to its wide host range and emergence of resistance breaking strains, its management is challenging. Up to now, resistance to TSWV infection based on RNA interference (RNAi) has been achieved only in transgenic plants expressing parts of the viral genome or artificial microRNAs targeting it. Exogenous application of double-stranded RNAs (dsRNAs) for inducing virus resistance in plants, namely RNAi-based vaccination, represents an attractive and promising alternative, already shown to be effective against different positive-sense RNA viruses and viroids. In the present study, the protection efficacy of exogenous application of dsRNAs targeting the nucleocapsid ( N ) or the movement protein ( NSm ) coding genes of the negative-sense RNA virus TSWV was evaluated in Nicotiana benthamiana as model plant and in tomato as economically important crop. Most of the plants treated with N -targeting dsRNAs, but not with NSm -targeting dsRNAs, remained asymptomatic until 40 ( N. benthamiana ) and 63 (tomato) dpi, while the remaining ones showed a significant delay in systemic symptoms appearance. The different efficacy of N - and NSm -targeting dsRNAs in protecting plants is discussed in the light of their processing, mobility and biological role. These results indicate that the RNAi-based vaccination is effective also against negative-sense RNA viruses but emphasize that the choice of the target viral sequence in designing RNAi-based vaccines is crucial for its success., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2020 Tabein, Jansen, Noris, Vaira, Marian, Behjatnia, Accotto and Miozzi.)

Published
2020
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49. ICTV Virus Taxonomy Profile: Alphaflexiviridae .

Author

Kreuze JF, Vaira AM, Menzel W, Candresse T, Zavriev SK, Hammond J, Hyun Ryu K, and Report Consortium I

Subjects
Flexiviridae ultrastructure, Gene Expression Regulation, Viral, Genome, Viral, Host Specificity, Phylogeny, Virion ultrastructure, Virus Replication, Flexiviridae classification, Flexiviridae physiology
Abstract

The family Alphaflexiviridae includes viruses with flexuous filamentous virions that are 470-800 nm in length and 12-13 nm in diameter. Alphaflexiviruses have a single-stranded, positive-sense RNA genome of 5.5-9 kb. They infect plants and plant-infecting fungi. They share a distinct lineage of alphavirus-like replication proteins that is unusual in lacking any recognized protease domain. With a single exception, cell-to-cell and long-distance movement is facilitated by triple gene block proteins in plant-infecting genera. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Alphaflexiviridae, which is available at www.ictv.global/report/alphaflexiviridae.

Published
2020
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50. Arbuscular Mycorrhizal Symbiosis Primes Tolerance to Cucumber Mosaic Virus in Tomato.

Author

Miozzi L, Vaira AM, Brilli F, Casarin V, Berti M, Ferrandino A, Nerva L, Accotto GP, and Lanfranco L

Subjects
Carbon Dioxide metabolism, Fungi metabolism, Fungi virology, Gene Expression Regulation, Plant, Mycorrhizae growth & development, Photosynthesis physiology, Plant Diseases virology, Plant Roots microbiology, Plant Roots virology, Reactive Oxygen Species metabolism, Cucumovirus metabolism, Solanum lycopersicum virology, Mycorrhizae virology, Symbiosis physiology
Abstract

Tomato plants can establish symbiotic interactions with arbuscular mycorrhizal fungi (AMF) able to promote plant nutrition and prime systemic plant defenses against pathogens attack; the mechanism involved is known as mycorrhiza-induced resistance (MIR). However, studies on the effect of AMF on viral infection, still limited and not conclusive, indicate that AMF colonization may have a detrimental effect on plant defenses against viruses, so that the term "mycorrhiza-induced susceptibility" (MIS) has been proposed for these cases. To expand the case studies to a not yet tested viral family, that is, Bromoviridae, we investigated the effect of the colonization by the AMF Funneliformis mosseae on cucumber mosaic virus (CMV) infection in tomato by phenotypic, physiological, biochemical, and transcriptional analyses. Our results showed that the establishment of a functional AM symbiosis is able to limit symptoms development. Physiological and transcriptomic data highlighted that AMF mitigates the drastic downregulation of photosynthesis-related genes and the reduction of photosynthetic CO 2 assimilation rate caused by CMV infection. In parallel, an increase of salicylic acid level and a modulation of reactive oxygen species (ROS)-related genes, toward a limitation of ROS accumulation, was specifically observed in CMV-infected mycorrhizal plants. Overall, our data indicate that the AM symbiosis influences the development of CMV infection in tomato plants and exerts a priming effect able to enhance tolerance to viral infection.

Published
2020
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