Figure 14. The genetic diversity of human populations is inversely correlated with the distance of their place of origin from East Africa.
This diagram shows the genetic diversity assessed from neutral markers of anthropologically well-characterized human populations worldwide. Each bar represents one population and the colors denote their geographical regions of origin. Africans; orange, European/Middle Eastern; blue, Indian; red, East Asian; pink, Oceanian (O); green, and Native American (NA); purple. Adapted with permission from Dr. Sarah Tishkoff from Fig. S2 in Tishkoff SA, et al. The genetic structure and history of Africans and African Americans. Science. (2009) 324:1035-1044 (136). Reprinted with permission from AAAS.