The pattern of genetic variability in a core collection of 2,021 cowpea accessions.

ABSTRACT: Cowpea is a highly drought-adapted leguminous crop with great promise for improving agricultural sustainability and food security. Here, we report analyses derived from array-based genotyping of 2,021 accessions constituting a core subset of the world's largest cowpea collection, held at the International Institute of Tropical Agriculture (IITA) in Ibadan, Nigeria. We used this dataset to examine genetic variation and population structure in worldwide cowpea. We confirm that the primary pattern of population structure is two geographically defined subpopulations originating in West and East Africa, respectively, and that population structure is associated with shifts in phenotypic distribution. Furthermore, we establish the cowpea core collection as a resource for genome-wide association s

SUBMITTER: Fiscus CJ 

PROVIDER: S-EPMC11152079 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature