Clustering of 244 wheat accessions based on multilocus genotype analysis using STRUCTURE.

<p>Each accession is depicted by a vertical line segmented into <i>K</i> coloured sections. The length of each section is proportional to the estimated membership coefficient (<i>Q</i>) of the individual accession to each one of the <i>K</i> clusters. The black vertical lines are separators between the different forms of wheat (BW: bread wheat; WEm: wild emmer; Em: emmer; Rivet and Durum). The upper panel depicts a model with two clusters (<i>K</i> = 2) and the lower panel a model with six clusters (<i>K</i> = 6). The black labels in the latter indicate the groups identified.