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6. Integrated pest management of Tuta absoluta: practical implementations across different world regions

Author

Desneux, Nicolas, Han, Peng, Mansour, Ramzi, Arnó, Judit, Brévault, Thierry, Campos, Mateus R., Chailleux, Anais, Guedes, Raul N. C., Karimi, Javad, Konan, Kouassi Arthur J., Lavoir, Anne-violette, Luna, María G., Perez-Hedo, Meritxell, Urbaneja, Alberto, Verheggen, François J., Zappalà, Lucia, Abbes, Khaled, Ali, Abid, Bayram, Yunus, Cantor, Fernando, Cuthbertson, Andrew G. S., De Vis, Raf, Erler, Fedai, Firake, Dnyaneshwar M., Haddi, Khalid, Hajjar, M. Jamal, Ismoilov, Khasan, Jaworski, Coline C., Kenis, Marc, Liu, Hao-tian, Madadi, Hossein, Martin, Thibaud, Mazih, Ahmed, J. Messelink, Gerben, Mohamed, Samira A., Nofemela, Robert S., Oke, Abiola, Ramos, César, Ricupero, Michele, Roditakis, Emmanouil, Shashank, Pathour R., Wan, Fang-Hao, Wang, Ming-hui, Wang, Su, Zhang, Yi-Bo, and Biondi, Antonio

Published
2022
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18. Ovarian development and role of vitellogenin gene in reproduction of the tomato leaf miner Tuta absoluta

Author

Yang, Wen-Jia, Yan, Xin, Han, Peng, Wang, Ming-hui, Zhang, Chi, Song, Jia-Hui, Zhang, Gui-Fen, Zhang, Yi-Bo, and Wan, Fang-Hao

Abstract

Vitellogenin (Vg) is a glycolipid complex protein produced by the fat body of female insects. It plays vital roles in oocyte development and helps regulate reproductive development. In this study, we determined the grading criteria for ovarian development and identified a Vg gene (designated TaVg) from the devastating invasive pest, Tuta absoluta (Meyrick). TaVg contains a 5208 bp open reading frame encoding a protein of 1735 amino acids that includes conserved domain structures of insect Vg. Phylogenetic analysis indicated that TaVg was clustered into a clade with the Vg of other Lepidoptera species, suggesting this gene has been conserved during evolution. Spatiotemporal expression analyses showed that TaVg was highly expressed in the female pupae and adults. There was increased expression during sexual maturation, and the high expression level was found in the ovary and fat body. RNAi-mediated silencing of TaVg resulted in significant downregulation of vitellogenin contents and severely affected ovarian development. Females injected with dsTaVg had shorter ovarian tubes and fewer oocytes compared with the untreated individuals. The number of oocytes and the amount of yolk deposition in the egg chambers also reduced. Depletion of TaVg significantly reduced the number of eggs laid and the hatching rate. Co-silencing of TaVg and TaVgR had a more significant effect on inhibiting the ovarian development and reducing female fecundity of T. absoluta, showing that the two genes play important role in regulating the reproduction. Our results provide potential targets for developing RNAi-based pest management tractic on T. absoluta.

Published
2024
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19. HDAC1: An Essential and Conserved Member of the Diverse Zn 2+ -Dependent HDAC Family Driven by Divergent Selection Pressure.

Author

Yang, Jing-Fang, Shi, Le-Rong, Wang, Ke-Chen, Huang, Li-Long, Deng, Yun-Shuang, Chen, Mo-Xian, Wan, Fang-Hao, and Zhou, Zhong-Shi

Subjects
SPECIES specificity, ACETYL group, DEACETYLASES, GENE expression, ENZYMES, BAYESIAN analysis
Abstract

Zn2+-dependent histone deacetylases (HDACs) are enzymes that regulate gene expression by removing acetyl groups from histone proteins. These enzymes are essential in all living systems, playing key roles in cancer treatment and as potential pesticide targets. Previous phylogenetic analyses of HDAC in certain species have been published. However, their classification and evolutionary origins across biological kingdoms remain unclear, which limits our understanding of them. In this study, we collected the HDAC sequences from 1451 organisms and performed analyses. The HDACs are found to diverge into three classes and seven subclasses under divergent selection pressure. Most subclasses show species specificity, indicating that HDACs have evolved with high plasticity and diversification to adapt to different environmental conditions in different species. In contrast, HDAC1 and HDAC3, belonging to the oldest class, are conserved and crucial in major kingdoms of life, especially HDAC1. These findings lay the groundwork for the future application of HDACs. [ABSTRACT FROM AUTHOR]

Published
2023
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22. Determination of Hourly Distribution of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) Using Sex Pheromone and Ultraviolet Light Traps in Protected Tomato Crops

Author

Zhang, Gui-Fen, primary, Zhang, Yi-Bo, additional, Zhao, Lin, additional, Wang, Yu-Sheng, additional, Huang, Cong, additional, Lü, Zhi-Chuang, additional, Li, Ping, additional, Liu, Wan-Cai, additional, Xian, Xiao-Qing, additional, Zhao, Jing-Na, additional, Li, Ya-Hong, additional, Wan, Fang-Hao, additional, Liu, Wan-Xue, additional, and Wang, Fu-Lian, additional

Published
2023
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39. Behavioural regulator and molecular reception of a double‐edge‐sword hunter beetle

Author

Chen, Zeng‐Liang, primary, Huang, Cong, additional, Li, Xi‐Sheng, additional, Li, Guo‐Cheng, additional, Yu, Ting‐Hong, additional, Fu, Guan‐Jun, additional, Zhang, Xue, additional, Song, Ce, additional, Bai, Peng‐Hua, additional, Cao, Li, additional, Qian, Wan‐Qiang, additional, Wan, Fang‐Hao, additional, Han, Ri‐Chou, additional, and Tang, Rui, additional

Published
2022
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42. Comparative Analysis of Stylet Penetration Behaviors of Eriosoma lanigerum (Hemiptera: Aphididae) on Main Apple Cultivars in China

Author

Wan Fang-Hao, Zhou HongXu, Zhou Hao, and Du Lingjun

Subjects
China, Aphid, Ecology, biology, Aphididae, Feeding Behavior, General Medicine, Phloem, Eriosoma lanigerum, biology.organism_classification, Hemiptera, Horticulture, Aphids, Insect Science, Electrical penetration graph, Animals, Jonagold, Cultivar, Nymph
Abstract

The preference and behavioral mechanism of the feeding behavior of the woolly apple aphid, Eriosoma lanigerum (Hausmann), on Chinese apple cultivars was investigated using the electrical penetration graph (EPG) technique. Feeding of adult aphids was assessed for the four main cultivars of apple in China (Red Fuji, Ralls Genet, Starkrimson, and Jonagold) over an 8-h monitoring period, what that of fourth-instar nymphs was assessed for 8 h on Jonagold only. EPG waveforms representing the details of probing behaviors, parameters were measured for analysis. We found that at the nonphloem phase, the total duration of the nonpenetration (np) waveform and the total duration of the stylet pathway phase (the ‘C wave’) on Ralls Genet and Starkrimson were significantly longer than on Red Fuji. In addition, the phloem-feeding phase, the total duration of ‘release of saliva into the phloem’, (the E1 waveform) was significantly longer on Ralls Genet and Jonagold than on Red Fuji. The total duration of the ‘ingestion from sieve cells’ phase (the E2 waveform) on Red Fuji, meanwhile, was significantly longer than on Ralls Genet or Starkrimson. At the same time, when combined with EPG parameters, Red Fuji was found to have no obvious resistance to woolly apple aphid and to be a susceptible cultivar. This experiment also recorded the feeding waveform of fourth-instar aphid nymphs. Based on the phloem and nonphloem parameters recorded in this study, it was inferred that adult aphids are more likely than nymphs to feed on apple trees.

Published
2020

48. Integrated pest management of Tuta absoluta: practical implementations across different world regions

Author

Desneux, Nicolas, primary, Han, Peng, additional, Mansour, Ramzi, additional, Arnó, Judit, additional, Brévault, Thierry, additional, Campos, Mateus R., additional, Chailleux, Anais, additional, Guedes, Raul N. C., additional, Karimi, Javad, additional, Konan, Kouassi Arthur J., additional, Lavoir, Anne-violette, additional, Luna, María G., additional, Perez-Hedo, Meritxell, additional, Urbaneja, Alberto, additional, Verheggen, François J., additional, Zappalà, Lucia, additional, Abbes, Khaled, additional, Ali, Abid, additional, Bayram, Yunus, additional, Cantor, Fernando, additional, Cuthbertson, Andrew G. S., additional, De Vis, Raf, additional, Erler, Fedai, additional, Firake, Dnyaneshwar M., additional, Haddi, Khalid, additional, Hajjar, M. Jamal, additional, Ismoilov, Khasan, additional, Jaworski, Coline C., additional, Kenis, Marc, additional, Liu, Hao-tian, additional, Madadi, Hossein, additional, Martin, Thibaud, additional, Mazih, Ahmed, additional, J. Messelink, Gerben, additional, Mohamed, Samira A., additional, Nofemela, Robert S., additional, Oke, Abiola, additional, Ramos, César, additional, Ricupero, Michele, additional, Roditakis, Emmanouil, additional, Shashank, Pathour R., additional, Wan, Fang-Hao, additional, Wang, Ming-hui, additional, Wang, Su, additional, Zhang, Yi-Bo, additional, and Biondi, Antonio, additional

Published
2021
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49. Halloween genes AhCYP307A2and AhCYP314A1modulate last instar larva–pupa–adult transition, ovarian development and oogenesis in Agasicles hygrophila(Coleoptera: Chrysomelidae)

Author

JIN, Ji-su, LIU, Yi-ran, ZHOU, Zhong-shi, WAN, Fang-hao, and GUO, Jian-ying

Abstract

In insects, ecdysteroids are synthesized by genes of the Halloween family and play important roles in several key developmental events, including molting and metamorphosis. However, the roles of these genes in Agasicles hygrophilaare still largely unknown. In this study, the expression patterns of the two Halloween genes AhCYP307A2and AhCYP314A1were determined by quantitative PCR (qPCR) at different developmental stages. Moreover, the functions of these two genes were explored using RNA interference (RNAi), and ovarian development was observed by dissecting the ovaries of A. hygrophilafemales. The qPCR results showed that AhCYP307A2and AhCYP314A1were highly expressed in last instar larvae and in adult females. In addition, AhCYP307A2was also highly expressed in eggs and pupae but was markedly lower than in third-instar larvae and females. The RNAi results showed that the injection of dsAhCYP307A2or dsAhCYP314A1markedly inhibited their expression and the transcription levels of three related AhVgs. Knockdown of AhCYP307A2or AhCYP314A1significantly inhibited larval molting, impaired last instar larva–pupa–adult transition, delayed ovarian development, and stopped egg production (i.e., no eggs were laid). These results indicate that AhCYP307A2and AhCYP314A1play important regulatory roles in last instar larva–pupa–adult transition and reproduction in A. hygrophila.

Published
2023
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50. Outbreak of the South American tomato leafminer, Tuta absoluta, in the Chinese mainland: geographic and potential host range expansion

Author

Zhang, Gui‐fen, primary, Xian, Xiao‐qing, additional, Zhang, Yi‐bo, additional, Liu, Wan‐xue, additional, Liu, Hui, additional, Feng, Xiao‐dong, additional, Ma, De‐ying, additional, Wang, Yu‐sheng, additional, Gao, You‐hua, additional, Zhang, Rong, additional, Li, Qing‐hong, additional, Wan, Fang‐hao, additional, Fu, Wen‐jun, additional, Wang, Jun, additional, Kuang, Meng, additional, Yang, Wen‐jia, additional, Rao, Xi, additional, Gao, Ying, additional, and Dai, Ai‐mei, additional

Published
2021
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