Fig. 2.

(A) Rooted population topology from a concordance-test approach (14). Nodes with boot-strap support <50% are collapsed (dashed lines); all other nodes have boot-strap support >85%. (B) Clustering of 403 sub-Saharan African individuals (~270,000 SNPs), assuming 2 to 11 clusters. (C) Clustering of 118 southern African individuals (~2.3 million SNPs), assuming 2 to 8 clusters. Compare with fig. S16, which includes recently admixed individuals.