Fig. 2From: Assessing the genetic diversity of cowpea [Vigna unguiculata (L.) Walp.] germplasm collections using phenotypic traits and SNP markersSubpopulation inference among the 90 cowpea accessions based on 14,166 SNPs showing a likelihood and delta K values for different number of assumed clusters, b principal coordinate analysis clustering of the genotypes and c population structure at K = 4Back to article page