Translational genomics for resistance to Aphanomyces euteiches between Medicago truncatula and pea

Autor: Pilet-Nayel, Marie-Laure, Bonhomme, Maxime, André, Olivier, Hajri, Ahmed, Boutet, Gilles, Badis, Yacine, Chantret, Nathalie, Ronfort, Joelle, Young, N.D., Baranger, Alain, Jacquet, Christophe
Přispěvatelé: Institut de Génétique, Environnement et Protection des Plantes (IGEPP), Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, 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), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Scottish Association for Marine Sciences, 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), Department of plant pathology, University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST, Evolution des Interactions Plantes-Microorganismes, Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: joint conference of the 6. International Food Legumes Research Conference (IFLRC VI) and the 7. International Conference on Legume Genetics and Genomics (ICLGG VII)
joint conference of the 6. International Food Legumes Research Conference (IFLRC VI) and the 7. International Conference on Legume Genetics and Genomics (ICLGG VII), Jul 2014, Saskatoon, Canada
Popis: AGAP : Equipe GE2pop; International audience; Common root rot, due to Aphanomyces euteiches, is a very damaging disease of legumes, especially pea, in many countries. Several consistent quantitative trait loci controlling partial resistance were identified in different pea genetic pools. Genomic basis of resistance to A. euteiches was investigated in the model legume Medicago truncatula in order to identify candidate genes underlying Aphanomyces resistance loci and analyze synteny of resistance loci between pea and M. truncatula. High density genome-wide association mapping was conducted in a collection of 179 M. truncatula accessions, for resistance to five reference A. euteiches isolates of main pea and alfalfa pathotypes. Two main genomic regions carrying candidate SNPs were associated with resistance. The first one corresponded to an F-box protein encoding gene at the prAe1/AER1 loci on chromosome 3 and the second one to a NBS-LRR resistance protein encoding gene underlying a new resistance locus on chromosome 4. The candidate genomic regions identified in M. truncatula were projected to a pea consensus genetic map carrying 1250 SNP markers anchored to M. truncatula genome. The F-box gene syntenic region co-located with the minor QTL Ae-Ps3.2 on pea LGIII and the NBS-LRR gene syntenic region was positioned about 50 cM far from the major QTL Ae-Ps7.6 on pea LGVII. Work is in progress to precise synteny between Aphanomyces resistance loci in pea and M. truncatula and to search for pea genes orthologous to the M. truncatula candidate genes identified
Databáze: OpenAIRE
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