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Optimisation of the RAPeSeed Oil content anD Yield under low Nitrogen input: improving breeding of adapted varieties using genetics and genomics

2012 - 2019


Improving oil yield per hectare and NUE are the main final targets of RAPSODYN, along with a better understanding of both hybrid value and genotype x N interaction. Therefore RAPSODYN aims at 1) identifying favorable alleles at loci contributing to phenotypic variation, 2) characterizing N-traits at the functional level (from molecular determinants to crop integrative processes) and 3) providing robust multilocus SNP-based predictors of the breeding value of agronomical traits under polygenic control. Moreover, RAPSODYN will allow the identification of new genetic variability for improvement of these traits.

The general ambition is to deliver the right nutrient rate at the right time on the right rapeseed variety grown under the right environment


RAPSODYN will develop resolutive tools, methods and plant material for association mapping and ecophysiological studies of oil yield under abiotic stresses (limited and fluctuated N resources), down to the evaluation of new breeding methods and the generation of molecular and innovative toolkit that will support the selection of improved rapeseed varieties, and adaptation of accurate cultural practice recommendations.


Nathalie Nesi
Annick Bellamy
INRA Rennes (IGEPP – Institut de Génétique, Environnement et Protection des Plantes)
INRA Grignon (EGC – Environnement et Grandes Cultures)
INRA Grignon (Agronomie)
INRA Versailles (IJPB – Institut Jean-Pierre Bourgin)
INRA Grenoble (GAEL – Laboratoire d’Economie Appliquée de Grenoble)
INRA Versailles (URGI – Unité de Recherche Génomique Info)
Université de Caen
CNRS Rennes (IRISA – Institut de Recherche en Informatique et Systèmes Aléatoires)
IRSTEA Rennes (TERE – Technologies des Equipements Agro-alimentaires)
Terres Inovia
Euralis Semences (sélectionneur)
Limagrain Europe (sélectionneur)
Maisadour Semences (sélectionneur)
RAGT 2n (sélectionneur)
Syngenta Seeds (sélectionneur)
Conception Pulsar Informatique