Fig. 4From: Gene-based SNP discovery in tepary bean (Phaseolus acutifolius) and common bean (P. vulgaris) for diversity analysis and comparative mappingPopulation structure analysis of P. acutifolius and P. parvifolius accessions showing clustering of individuals into populations on the basis of multi-locus genotyping using STRUCTURE v2.3. a all accessions; b. cultivated P. acutifolius accessions only; C. wild P. acutifolius accessions only. (i,iii,v): optimal number of populations (K) for each set, calculated and displayed graphically using STRUCTURE Harvester [46]. (ii,iv,vi,vii): STRUCTURE output for each set of accessions. Each color represents one population and each accession is represented by a vertical bar. The length of each colored segment in a vertical bar represents the proportion of alleles contributed by each of the populationsBack to article page