Figure 4. Pairwise mismatch distribution (left) and Bayesian skyline plots (right), depicting the demographic history for the entire sample (A and B), lineage A (C and D), and lineage B (E and F). For mismatch distributions, black circles represent the observed distribution of pairwise differences and white circles represent the theoretical expected distribution under a population expansion model. For the skyline plot, black lines represent median estimates, whereas the dotted lines represent the upper and lower 95% credible intervals. The x-axis of Bayesian skyline figures is the time per million years before the present and the y-axis is the estimated effective population size (Ne).