Distribution of fitness effects under various best-fit selective models.

Proportion of mutations falling into each selection interval for each population under each best-fit models. Demographic model parameters are listed in Table 3; selection model parameters are listed in Table 1 except for African American stationary gamma (�� = 0.59, �� = 37), and European American stationary gamma (�� = 0.36, �� = 120), and European American simple bottleneck gamma (�� = 0.228, �� = 5200).各最优拟合模型下，不同人群中落入各选择区间的突变比例。人口模型参数详见表3；除非裔美国人平稳伽马模型（α = 0.59，β = 37）、欧裔美国人平稳伽马模型（α = 0.36，β = 120）以及欧裔美国人简单瓶颈伽马模型（α = 0.228，β = 5200）外，其余选择模型参数详见表1。