Fig. 6.

Pairwise comparisons of population differentiation of incomplete gene gain and loss frequencies. (A) Distribution of V_ST values of presence/absence polymorphism at gene gain and loss loci. The dashed line shows the 97.5th percentile of the distribution of corresponding pairwise F_ST value for genome-wide synonymous SNPs (n = 1,457). (B) Quantile–quantile plots comparing the distribution of V_ST for incomplete gene gains and losses and the distribution of F_ST for the genome-wide synonymous SNPs. Points should follow the diagonal line if distribution of F_ST and V_ST were equal.