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Haplogroup K2b is ancestor of R, and it seem to be australoid
According to Karafet et al., the estimated dates for the branching of K, K2, K2b and P point to a "rapid diversification" within K2 "that likely occurred in Southeast Asia", with subsequent "westward expansions" of P*, P1, Q and RThe only living males reported as carrying the basal paragroup K2* (K-M526) are indigenous Australian males. Up to 27% of them may carry K2* and approximately 29% of Aboriginal Australian males belong to subclades of K2b1.
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