Figure 2.
Pairwise FST and SNP Heterozygosity in a Set of Worldwide Populations
FST was calculated with the use of ten individuals from each worldwide population and Egyptians (A), Yoruba (B), and Semitic-Cushitic (C) and Nilotic-Omotic Ethiopians (D), and is displayed as a heat surface, produced with the Surfer software. Values in (C) and (D) are the averages for all the Semitic-Cushitic or Nilotic-Omotic populations. (E) shows the average genomic heterozygosity calculated for the same samples with the use of the available SNPs. The bottom-right section of each panel includes a scatter plot displaying the actual values of either Fst or heterozigosity over the geographic distance (in km) from Addis Ababa (negative for sub-Saharan populations). Filled and empty circles represent non-African populations along the putative northern or southern routes, respectively. Triangles represent sub-Saharan populations.