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14 results on '"Rocher, Aline"'

3. Combining abilities and heterosis for biomass yield and quality related traits in single-cut forage sorghum adapted to temperate climates

Author

Sory, Amadou Jean-Baptiste, Rocher, Aline, Jeanson, Patrice, Alcouffe, Joël, Devaud, Quentin, Trouche, Gilles, De Bellis, Fabien, Pot, David, Sory, Amadou Jean-Baptiste, Rocher, Aline, Jeanson, Patrice, Alcouffe, Joël, Devaud, Quentin, Trouche, Gilles, De Bellis, Fabien, and Pot, David

Abstract

Sorghum is among the most important cereals in the world in terms of human and animal nutrition and contributes to several bio-based value chains, including bioenergy production. The development of varieties fitting the expectations of these different end-products requires a better understanding of the genetic determinism of the traits contributing to the targeted ideotypes. In this context, the objectives of this study were to estimate the general and specific combining abilities of biomass quality and production related traits, explore their correlations and assess the heterosis levels achieved. To reach, these goals a factorial design based on 10 female and 16 male parents that were selected for their General Combining Abilities (GCA) for biomass production has been developed. One hundred and forty seven hybrids were evaluated on 3 sites together with their parental lines in 2014. Heritability of 0.69, 0.79 and 0.90 were observed respectively for the dry matter yield, lodging at maturity and biomass digestibility. Correlations' analysis between hybrid genetic values and combing ability components showed that hybrid performance is mainly correlated with the male parents GCA and depends only weakly of the female GCA. Higher best parent relative heterosis (up to 49%) was observed for biomass yield compared to biomass digestibility (up to 9%) and a negative genetic correlation (-0.54 for the blup values and -0.6 for the GCA values) was observed between biomass yield and digestibility in the factorial design. The best hybrids were selected and evaluated on 4 and 3 sites respectively in 2015 and 2016. In addition to allow the identification of elite parental lines that will be used in future crosses, this study underlined the negative correlations between biomass production and quality that will need to be tackled and the lack of strategies to accurately predict heterosis in single cut forage sorghum.

Published
2023

5. From cultivar mixtures to allelic mixtures: opposite effects of allelic richness between genotypes and genotype richness in wheat

Author

Montazeaud, Germain, primary, Flutre, Timothée, additional, Ballini, Elsa, additional, Morel, Jean‐Benoit, additional, David, Jacques, additional, Girodolle, Johanna, additional, Rocher, Aline, additional, Ducasse, Aurélie, additional, Violle, Cyrille, additional, Fort, Florian, additional, and Fréville, Hélène, additional

Published
2022
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7. Genetic architecture of semolina yield and of its components in durum wheat (Triticum turgidum spp. durum)

Author

TAVAUD-PIRRA, Muriel, Ardisson, Morgane, Compan, Frederic, David, Jacques, Rocher, Aline, Sanchez, Dimitri, Roumet, Pierre, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)

Subjects
Vegetal Biology, sélection génétique, architecture génétique, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, triticum turgidum durum, Biologie végétale, ComputingMilieux_MISCELLANEOUS, amélioration des plantes
Abstract

International audience

Published
2018

8. Genotype mixtures as a tool to develop sustainable agriculture? Elucidating the mechanisms that drive genotypic interactions in crops

Author

Fréville, Hélène, Roumet, Pierre, Rode, Nicolas, Muller, Marie-Helene, Rocher, Aline, Latreille, Muriel, David, Jacques, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centre de Biologie pour la Gestion des Populations (UMR CBGP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)

Subjects
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2018

9. Kin recognition in crops as a possible mechanism for explaining lower yield of variety mixtures

Author

Fréville, Hélène, Roumet, Pierre, Rode, Nicolas, Rocher, Aline, Latreille, Muriel, Muller, Marie-Helene, David, Jacques, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centre de Biologie pour la Gestion des Populations (UMR CBGP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)

Subjects
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2018

11. Genotype mixtures as a tool to develop sustainable agriculture: elucidating the mechanisms that drive genotypic interactions in durum wheat

Author

Fréville, Hélène, Roumet, Pierre, Rode, Nicolas, Rocher, Aline, Ecarnot, Martin, Compan, Frederic, David, Jacques, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)

Subjects
Vegetal Biology, varietal mixtures, blé dur, développement agricole durable, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, génotype, Biologie végétale, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2016

12. Genotype mixtures: a tool to develop sustainable agriculture? Mechanisms that drive genotypic interactions in durum wheat

Author

Fréville, Hélène, Roumet, Pierre, Rode, Nicolas, Rocher, Aline, Ecarnot, Martin, Compan, Frederic, Muller, Marie-Helene, David, Jacques, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centre de Biologie pour la Gestion des Populations (UMR CBGP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)

Subjects
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2016

13. Genetic architecture of kernels quality traits in an evolutionary prebreeding population of durum wheat

Author

David, Jacques, Vilmus, Ingrid, Ranwez, Vincent, Roumet, Pierre, Tavaud, Muriel, Compan, Frederic, Rocher, Aline, Ardisson, Morgane, Santoni, Sylvain, Paux, Etienne, Rimbert, Hélène, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Génétique Diversité et Ecophysiologie des Céréales (GDEC), Institut National de la Recherche Agronomique (INRA)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), ProdInra, Migration, and Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de la Recherche Agronomique (INRA)

Subjects
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology, [SDV.BV] Life Sciences [q-bio]/Vegetal Biology
Abstract

Equipe GE2POP; International audience; Recent advances in genotyping and phenotyping technologies can now be applied in durum wheat and permit to adress a genome wide approach to disclose the geneti c architecture of kernel quality traits. DNA chips can allow the genotyping of thousands of SNP markers on several hundreds of lines while NIRS (Near Infra Red spectroscopy) allow the predicti on of relevant traits in durum wheat quality, e.g., protein content, yellow pigment content and semolina yield. Genome Wide Assocati on Studies (GWAS) have proven their potenti al in detecti ng chromosomal areas implied in the variati on of traits. Good panels should have a diversity level, a low structurati on and reduced level of linkage disequilibrium. Assembling panels from lines of diverse origin is usually the rule in many crops but may lead to a substanti al structurati on eff ect and to spurrious associati ons. We propose here to use lines drawn from an original composite cross populati on, originally dedicated to create a pre breeding resource. The Evoluti onary Prebreeding pOpulati on (EPO) is conti nuously grown since 1997 with a light selecti on and a 10% outcrossing rate. We report the fi rst results of a GWAS study on 300 hundred lines drawn from the 2009 harvest of EPO. Using a set of 62 000 polymorphic SNP drawn along the genome, we report the associati ons found between this set of markers and a set of traits related to the kernel quality predicted by NIRS. First, the characteristi cs of the EPO populati on will be illustrated to examine its power to detect associati on. We will report the fi ne geneti c structurati on and the fi ne scale Linkage disequilibrium on the 3B chromosome on which the SNP can be physically located. Then kernels quality traits will be dissected by GWAS to detect the most important chromosomal regions involved in the variati on. Finally, each trait will be predicted as the whole level to discuss the potenti al of Genomic Selecti on (GS) in the improvement of quality in the durum kernel.

Published
2015

14. Unravelling the impact of domestication on competitive ability in Durum Wheat: A Phenotypic Plasticity Perspective.

Author

Lemoine T, Violle C, Gonzalez EA, Gaubert M, Rocher A, Fréville H, and Fort F

Abstract

The need to address the impact of domestication on plant traits is frequently highlighted in modern agriculture. It is often argued that domesticated plants have lost competitive ability due to reduced phenotypic plasticity. This study examines whether domestication has affected competitive ability, functional trait values, and plasticity in durum wheat across 39 genotypes representing four key stages of domestication, from wild progenitors to modern elite varieties. Plants were grown in pots, both alone and in competition with a same neighboring genotype. Biomass, and above- and belowground traits were measured at the end of the vegetative stage. Our results show that the three domesticated groups lost less biomass in response to competition compared to their wild progenitors. All genotypes developed thinner leaves and thicker roots when grown with a neighbor. While wild progenitors exhibited the highest plasticity, this did not translate to a greater competitive ability. These findings challenge the theoretical expectation that domesticated plants are less suited for competition. Instead, they suggest that domesticated plants perform well in competitive environments and question the need to reintroduce wild traits to improve competitive ability., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)

Published
2024
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