Fig. 2.
Two-tailed empirical P values for obtaining the observed (A) SLC45A2 G allele, (B) TYR A allele, and (C) HERC2 G allele frequency increase. P values were obtained by forward simulation of drift and natural selection across a range of assumed ancestral population sizes and selection coefficients, assuming exponential growth to a modern Ne of 4,845,710. The SLC45A2 rs16891982 G allele and the TYR rs1042602 A allele were assumed to be codominant. The HERC2 rs12913832 G allele was assumed to be recessive (values less than 0.01 are shaded gray).