Fig. 3From: Linkage disequilibrium patterns, population structure and diversity analysis in a worldwide durum wheat collection including Argentinian genotypesPopulation structure according to the discriminant analysis of principal components (DAPC) using 675 SNPs. The first two components are displayed graphically (each sub-population is differentiated by color) (a). Cluster selection was based on the BIC value (b). Number of PC retained using the cross-validation test (c)Back to article page