Figure 2. Population Structure and Genomic Distributions of Various Statistics.

(A) Results from Structure under different assumptions about the number of clusters (K = 2,…, 8). Each individual is represented by a line, which is partitioned into K colored segments according to the individual's estimated membership fractions in each of the K clusters. The assignment of each individual is the average across the genome.

(B) Results from Structure across Chromosome 1 for K = 3. Each chromosomal segment is colored according to the cluster in which it had the highest probability of membership.

(C) A plot showing those fragments that appear to be monophyletic with respect to each of the three clusters identified by Structure.

(D) F_ST with respect to the same three clusters (blue solid line) and the lower 95th percentile of F_ST obtained through 1,000 random permutations of the accessions (red dotted line).

(E) θ^_P within each of the three clusters.

(F) Tajima's D statistic within each of the three clusters.

(G) Results from Structure across Chromosome 1 for K = 8.

(H) A plot showing those fragments that appear to be monophyletic with respect to each of these eight clusters.

(I) F_ST with respect to these eight clusters.