SNP genotypes of the international institute of tropical agriculture Cowpea Core

Cowpea (Vigna unguiculata [L.], Walp.) is a member of the family Fabaceae, subfamily Faboideae (a.k.a. Papilionoideae) and tribe Phaseoleae, along with other “warm season” legumes such as soybean, common bean, mung bean, adzuki bean, Bambara groundnut and others. The International Institute of Tropical Agriculture (IITA) in Ibadan, Nigeria maintains the world’s largest collection of cowpea germplasm with a collection size of 16,460 accessions as of September 2023. Information on these accessions is available online (https://my.iita.org/accession2/collection.jspx?id=1), including passport data, characterization descriptors and images. A subset known as the “IITA Cowpea Core” is comprised of nearly 2,100 accessions (Mahalakshmi et al. 2007; doi: 10.1017/S1479262107837166). Here we present single nucleotide polymorphism (SNP) data for most of the accessions in the IITA Cowpea Core, along with a few simple observations resulting from analyses of the SNP data.
The SNP data were generated usi...