Estimated population structure. Each colored vertical line represents an individual that is assigned proportionally to one of the K clusters with the proportions represented by the relative lengths of the K different colors. Black lines separate individuals of different populations. Populations are labeled below the figure with the same convention shown in Table 1 and Figure 1. Left plot: population structure inferred by STRUCTURE; right plot: population structure inferred by frappe. For both STRUCTURE and frappe results, the figure shown for a given K is based on the highest probability run of ten runs at that K.