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20 results on '"Hufnagel, Bárbara"'

2. Genetics of nodulation in Aeschynomene evenia uncovers mechanisms of the rhizobium–legume symbiosis

Author

Quilbé, Johan, Lamy, Léo, Brottier, Laurent, Leleux, Philippe, Fardoux, Joël, Rivallan, Ronan, Benichou, Thomas, Guyonnet, Rémi, Becana, Manuel, Villar, Irene, Garsmeur, Olivier, Hufnagel, Bárbara, Delteil, Amandine, Gully, Djamel, Chaintreuil, Clémence, Pervent, Marjorie, Cartieaux, Fabienne, Bourge, Mickaël, Valentin, Nicolas, Martin, Guillaume, Fontaine, Loïc, Droc, Gaëtan, Dereeper, Alexis, Farmer, Andrew, Libourel, Cyril, Nouwen, Nico, Gressent, Frédéric, Mournet, Pierre, D’Hont, Angélique, Giraud, Eric, Klopp, Christophe, and Arrighi, Jean-François

Published
2021
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3. The causal mutation leading to sweetness in modern white lupin cultivars

Author

Mancinotti, Davide, primary, Czepiel, Katarzyna, additional, Taylor, Jemma L., additional, Golshadi Galehshahi, Hajar, additional, Møller, Lillian A., additional, Jensen, Mikkel K., additional, Motawia, Mohammed Saddik, additional, Hufnagel, Bárbara, additional, Soriano, Alexandre, additional, Yeheyis, Likawent, additional, Kjaerulff, Louise, additional, Péret, Benjamin, additional, Staerk, Dan, additional, Wendt, Toni, additional, Nelson, Matthew N., additional, Kroc, Magdalena, additional, and Geu-Flores, Fernando, additional

Published
2023
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4. High-quality genome sequence of white lupin provides insight into soil exploration and seed quality

Author

Hufnagel, Bárbara, Marques, André, Soriano, Alexandre, Marquès, Laurence, Divol, Fanchon, Doumas, Patrick, Sallet, Erika, Mancinotti, Davide, Carrere, Sébastien, Marande, William, Arribat, Sandrine, Keller, Jean, Huneau, Cécile, Blein, Thomas, Aimé, Delphine, Laguerre, Malika, Taylor, Jemma, Schubert, Veit, Nelson, Matthew, Geu-Flores, Fernando, Crespi, Martin, Gallardo, Karine, Delaux, Pierre-Marc, Salse, Jérôme, Bergès, Hélène, Guyot, Romain, Gouzy, Jérôme, and Péret, Benjamin

Published
2020
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5. The causal mutation leading to sweetness in modern white lupin cultivars

Author

Mancinotti, Davide, Czepiel, Katarzyna, Taylor, Jemma L., Galehshahi, Hajar Golshadi, Møller, Lillian A., Jensen, Mikkel K., Motawia, Mohammed Saddik, Hufnagel, Bárbara, Soriano, Alexandre, Yeheyis, Likawent, Kjaerulff, Louise, Péret, Benjamin, Staerk, Dan, Wendt, Toni, Nelson, Matthew N., Kroc, Magdalena, Geu-Flores, Fernando, Mancinotti, Davide, Czepiel, Katarzyna, Taylor, Jemma L., Galehshahi, Hajar Golshadi, Møller, Lillian A., Jensen, Mikkel K., Motawia, Mohammed Saddik, Hufnagel, Bárbara, Soriano, Alexandre, Yeheyis, Likawent, Kjaerulff, Louise, Péret, Benjamin, Staerk, Dan, Wendt, Toni, Nelson, Matthew N., Kroc, Magdalena, and Geu-Flores, Fernando

Abstract

Lupins are high-protein crops that are rapidly gaining interest as hardy alternatives to soybean; however, they accumulate antinutritional alkaloids of the quinolizidine type (QAs). Lupin domestication was enabled by the discovery of genetic loci conferring low QA levels (sweetness), but the precise identity of the underlying genes remains uncertain. We show that pauper, the most common sweet locus in white lupin, encodes an acetyltransferase (AT) unexpectedly involved in the early QA pathway. In pauper plants, a single-nucleotide polymorphism (SNP) strongly impairs AT activity, causing pathway blockage. We corroborate our hypothesis by replicating the pauper chemotype in narrow-leafed lupin via mutagenesis. Our work adds a new dimension to QA biosynthesis and establishes the identity of a lupin sweet gene for the first time, thus facilitating lupin breeding and enabling domestication of other QA-containing legumes.

Published
2023

6. Duplicate and Conquer: Multiple Homologs of PHOSPHORUS-STARVATION TOLERANCE1 Enhance Phosphorus Acquisition and Sorghum Performance on Low-Phosphorus Soils

Author

Hufnagel, Barbara, de Sousa, Sylvia M., Assis, Lidianne, Guimaraes, Claudia T., Leiser, Willmar, Azevedo, Gabriel C., Negri, Barbara, Larson, Brandon G., Shaff, Jon E., Pastina, Maria Marta, Barros, Beatriz A., Weltzien, Eva, Rattunde, Henry Frederick W., Viana, Joao H., Clark, Randy T., Falcão, Alexandre, Gazaffi, Rodrigo, Garcia, Antonio Augusto F., Schaffert, Robert E., Kochian, Leon V., and Magalhaes, Jurandir V.

Published
2014
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10. Genetics of nodulation in Aeschynomene evenia uncovers mechanisms of the rhizobium–legume symbiosis

Author

Agence Nationale de la Recherche (France), Agropolis Fondation, Ministerio de Ciencia e Innovación (España), European Commission, Becana Ausejo, Manuel [0000-0002-1083-0804], Quilbé, Johan, Lamy, Léo, Brottier, Laurent, Leleux, Philippe, Fardoux, Joël, Rivallan, Ronan, Benichou, Thomas, Guyonnet, Rémi, Becana Ausejo, Manuel, Villar Rua, Irene, Olivier Garsmeur, Hufnagel, Bárbara, Delteil, Amandine, Gully, Djamel, Chaintreuil, Clémence, Pervent, Marjorie, Cartieaux, Fabianne, Bourge, Michaël, Valentin, Nicolas, Martin, Guillaume, Droc, Gaëtan, Dereeper, Alexis, Farmer, Andrew, Libourel, Cyril, Nouwen, Nico, Gressent, Fréderic, Mournet, Pierre, D’Hont, Angélique, Giraud, Eric, Klopp, Christophe, Arrighi, Jean-François, Agence Nationale de la Recherche (France), Agropolis Fondation, Ministerio de Ciencia e Innovación (España), European Commission, Becana Ausejo, Manuel [0000-0002-1083-0804], Quilbé, Johan, Lamy, Léo, Brottier, Laurent, Leleux, Philippe, Fardoux, Joël, Rivallan, Ronan, Benichou, Thomas, Guyonnet, Rémi, Becana Ausejo, Manuel, Villar Rua, Irene, Olivier Garsmeur, Hufnagel, Bárbara, Delteil, Amandine, Gully, Djamel, Chaintreuil, Clémence, Pervent, Marjorie, Cartieaux, Fabianne, Bourge, Michaël, Valentin, Nicolas, Martin, Guillaume, Droc, Gaëtan, Dereeper, Alexis, Farmer, Andrew, Libourel, Cyril, Nouwen, Nico, Gressent, Fréderic, Mournet, Pierre, D’Hont, Angélique, Giraud, Eric, Klopp, Christophe, and Arrighi, Jean-François

Abstract

Among legumes (Fabaceae) capable of nitrogen-fixing nodulation, several Aeschynomene spp. use a unique symbiotic process that is independent of Nod factors and infection threads. They are also distinctive in developing root and stem nodules with photosynthetic bradyrhizobia. Despite the significance of these symbiotic features, their understanding remains limited. To overcome such limitations, we conduct genetic studies of nodulation in Aeschynomene evenia, supported by the development of a genome sequence for A. evenia and transcriptomic resources for 10 additional Aeschynomene spp. Comparative analysis of symbiotic genes substantiates singular mechanisms in the early and late nodulation steps. A forward genetic screen also shows that AeCRK, coding a receptor-like kinase, and the symbiotic signaling genes AePOLLUX, AeCCamK, AeCYCLOPS, AeNSP2, and AeNIN are required to trigger both root and stem nodulation. This work demonstrates the utility of the A. evenia model and provides a cornerstone to unravel mechanisms underlying the rhizobium–legume symbiosis.

Published
2021

11. Genetics of nodulation in Aeschynomene evenia uncovers new mechanisms of the rhizobium-legume symbiosis

Author

Quilbé, Johan, primary, Lamy, Léo, additional, Brottier, Laurent, additional, Leleux, Philippe, additional, Fardoux, Joël, additional, Rivallan, Ronan, additional, Benichou, Thomas, additional, Guyonnet, Rémi, additional, Becana, Manuel, additional, Villar, Irene, additional, Garsmeur, Olivier, additional, Hufnagel, Bárbara, additional, Delteil, Amandine, additional, Gully, Djamel, additional, Chaintreuil, Clémence, additional, Pervent, Marjorie, additional, Cartieaux, Fabienne, additional, Bourge, Mickaël, additional, Valentin, Nicolas, additional, Martin, Guillaume, additional, Fontaine, Loïc, additional, Droc, Gaëtan, additional, Dereeper, Alexis, additional, Farmer, Andrew, additional, Libourel, Cyril, additional, Nouwen, Nico, additional, Gressent, Frédéric, additional, Mournet, Pierre, additional, D’Hont, Angélique, additional, Giraud, Eric, additional, Klopp, Christophe, additional, and Arrighi, Jean-François, additional

Published
2020
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14. Genome sequence of the cluster root forming white lupin

Author

Hufnagel, Bárbara, primary, Marques, André, additional, Soriano, Alexandre, additional, Marquès, Laurence, additional, Divol, Fanchon, additional, Doumas, Patrick, additional, Sallet, Erika, additional, Mancinotti, Davide, additional, Carrere, Sébastien, additional, Marande, William, additional, Arribat, Sandrine, additional, Keller, Jean, additional, Huneau, Cécile, additional, Blein, Thomas, additional, Aime, Delphine, additional, Laguerre, Malika, additional, Taylor, Jemma, additional, Schubert, Veit, additional, Nelson, Matthew, additional, Geu-Flores, Fernando, additional, Crespi, Martin, additional, Gallardo-Guerrero, Karine, additional, Delaux, Pierre-Marc, additional, Salse, Jérôme, additional, Bergès, Hélène, additional, Guyot, Romain, additional, Gouzy, Jérôme, additional, and Péret, Benjamin, additional

Published
2019
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16. Anatomical and hormonal description of rootlet primordium development along white lupin cluster root.

Author

Gallardo, Cécilia, Hufnagel, Bárbara, Casset, Célia, Alcon, Carine, Garcia, Fanny, Divol, Fanchon, Marquès, Laurence, Doumas, Patrick, and Péret, Benjamin

Subjects
*ROOT development, *PLANT roots, *PLANT growth, *LUPINUS albus, *LEGUMES, *GENE expression in plants, *AUXIN
Abstract

Cluster root (CR) is one of the most spectacular plant developmental adaptations to hostile environment. It can be found in a few species from a dozen botanical families, including white lupin (Lupinus albus) in the Fabaceae family. These amazing structures are produced in phosphate‐deprived conditions and are made of hundreds of short roots also known as rootlets. White lupin is the only crop bearing CRs and is considered as the model species for CR studies. However, little information is available on CRs atypical development, including the molecular events that trigger their formation. To provide insights on CR formation, we performed an anatomical and cellular description of rootlet development in white lupin. Starting with a classic histological approach, we described rootlet primordium development and defined eight developmental stages from rootlet initiation to their emergence. Due to the major role of hormones in the developmental program of root system, we next focussed on auxin‐related mechanisms. We observed the establishment of an auxin maximum through rootlet development in transgenic roots expressing the DR5:GUS auxin reporter. Expression analysis of the main auxin‐related genes [TIR, Auxin Response Factor (ARF) and AUX/IAA] during a detailed time course revealed specific expression associated with the formation of the rootlet primordium. We showed that L. albusTRANSPORT INHIBITOR RESPONSE 1b is expressed during rootlet primordium formation and that L. albusAUXIN RESPONSE FACTOR 5 is expressed in the vasculature but absent in the primordium itself. Altogether, our results describe the very early cellular events leading to CR formation and reveal some of the auxin‐related mechanisms. [ABSTRACT FROM AUTHOR]

Published
2019
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17. Multiple interval QTL mapping and searching for PSTOL1 homologs associated with root morphology, biomass accumulation and phosphorus content in maize seedlings under low-P

Author

Azevedo, Gabriel C, primary, Cheavegatti-Gianotto, Adriana, additional, Negri, Bárbara F, additional, Hufnagel, Bárbara, additional, e Silva, Luciano da Costa, additional, Magalhaes, Jurandir V, additional, Garcia, Antonio Augusto F, additional, Lana, Ubiraci GP, additional, de Sousa, Sylvia M, additional, and Guimaraes, Claudia T, additional

Published
2015
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