Table 1.

Simulation Results of Sex-Asymmetric Migration Model.

Parameter Valuesa	Autosomal FST	Chromosome X FST	FST-Based Ratio Q	Sequence Diversity–Based Ratio T
Estimates from data (95% confidence interval)	0.144 (0.138–0.149)	0.221 (0.203–0.239)	0.582 (0.524–0.640)	0.635 (0.587–0.683)
Baseline model	0.148	0.220	0.605	0.666
p = ½	0.148	0.181	0.787	0.742
p = 0.8	0.148	0.201	0.686	0.701
NAfrican = 20,000	0.128	0.197	0.590	0.660
t = 1,600	0.119	0.189	0.574	0.658
NAfrican = 20,000, t = 1,600	0.104	0.172	0.552	0.657
t = 110	0.058	0.120	0.449	0.646
m = 0.12	0.128	0.192	0.612	0.686
m = 0.06	0.186	0.264	0.621	0.641
g = 13	0.130	0.194	0.611	0.684
g = 7	0.182	0.259	0.618	0.642
g = 20, m = 0.046	0.146	0.218	0.606	0.667
g = 400, m = 0.0023	0.138	0.210	0.594	0.668
g = 1,000, m = 0.00094	0.123	0.194	0.575	0.672
g = 1, m = 0.5	0.205	0.283	0.634	0.633
F = 1.5	0.154	0.228	0.603	0.659
F = 0.9	0.142	0.210	0.612	0.675
Twice male generation time	0.148	0.233	0.564	0.641

^aValues of parameters that differ from the baseline values of t = 2,400, N_ancestral = N_African = N_non-African = 10,000, F = 1.2, m = 0.09, g = 10, and p = 1.