Fig. 7

A, B Maximum likelihood trees for five intercontinental populations (A) and East Asian populations (B) when the optimal migration events were two (A) and six (B), respectively. The deltaM plot was above maximum likelihood tree, with the number of migration events from 1 to 10 (m = 1–10). C, D Heatmaps of residual fits obtained from the maximum likelihood tree. The color scale was shown on the right. Residuals greater than zero (white) represented that the corresponding populations were closely related and possible admixture events among them