FIG 6.

Pairwise F_ST between European Americans and Africans for different ascertainment schemes. Standard error bars were estimated using 1,000 bootstrap samples. For the black bars, the SNPs are sampled independently and for the gray bars, the SNPs are sampled genewise from the 251 genes. The ascertainment was performed in African Americans and a varying number of individuals were used for the ascertainment. N_Asc is the number of ascertained SNPs. The F_ST estimate using all SNPs (no ascertainment bias) is labeled “None.”