Correlations between population structure results. Results of STRUCTURE analyses using the 93 SNP AIM Set and 3500 random SNPs are shown. The fraction of membership for each individual analyzed is indicated for each of six clusters (panels A-F) for the 93 SNP AIM set (ordinate) and a 3500 SNP set (abscissa). The population clusters named according to the continental group with the largest membership in that group. The subjects included each of the HGDP, HapMap and the Maya (Kachiquel) individuals (see methods). The results show a single 3500 random SNP set is shown. However each of three independent 3500 random SNP sets show very similar results. For panels D and F, the South Asian ethnic groups (open circles) and Adygei ethnic group (grey circles) are shown with different symbols to highlight the differences between the 93 SNP AIM set and 3500 random SNPs.