Divergence and differentiation among sub-populations.

aKST values are displayed above the diagonal and represent the weighted measure of the ratio of the average pair-wise differences within groups to the total average pair-wise differences.bSnn values are displayed below the diagonal in bold and represent the proportion of nearest neighbors in sequence space that are found in the same group. Significance levels for KST and Snn were assessed using permutation tests, with 1000 permutations: ns = non-significant, *0.01**0.001***pcDxy values are displayed at the bottom of the diagonal and represent the minimum estimate of the number of nucleotide differences per site between groups.