High-density genotyping of pea and faba bean diversity panels using exome capture

International audience; Genome-wide association studies (GWAS) represent a powerful tool to decipher the geneticdeterminism of complex traits in crop plants and to identify responsible genes. As GWAS require large diversitypanels segregating for the traits of interest, one faba bean and three pea collections were constituted toaddress different questions in the PeaMUST project. The faba bean panel comprises 248 accessions comingfrom five continents and displaying the phenotypic diversity of the species. The first pea collection includes239 accessions that represent the species diversity for aerial and root architecture and for biotic and abioticstress responses. The second and third pea pan…

The Pea genome and after...

Complementary approaches towards the discovery of genes controlling yield in pea

International audience; Pea is one of the most important grain legumes in the world. Improving pea yield is a critical breedingtarget in the current context of consumers’ increasing demand for plant proteins for food and feed. Becauseof its polygenic nature and the impact of the environment, breeding for higher yield is challenging. Weinvestigated the genetic determinism of yield (SW), seed number (SN) and thousand seed weight (TSW) usingboth linkage and linkage-disequilibrium approaches.Nine interconnected mapping populations, representing a total of 1,213 recombinant inbred lineswere phenotyped for SW, SN and TSW in six different field environments. These lines were genotyped usingthe Gen…