Tuesday, May 15, 2012
Neighbor-joining tree of Saharan Groups and Other Africans
Figure S18 [Tishkoff et al]: Un-rooted neighbor-joining tree from pairwise net nucleotide genetic distances calculated from the inferred ancestral allele frequencies at K = 14 from STRUCTURE analysis of the African dataset. Major clades observed in the tree include the North African/Dogon, Fulani, Cushitic, and Mbugu AACs, the SAK-Mbuti Pygmy and W. Pygmy AACs, and the Hadza and Sandawe AACs. The Nilo-Saharan and Chadic-Saharan AAC form a sister group and cluster with the Central Sudanic AAC. The Bantu AACs radiate from the center of the tree.