How Chinese relate to each other and the Japanese

Last month I pointed to a paper on Chinese population structure, Genomic Dissection of Population Substructure of Han Chinese and Its Implication in Association Studies. One to note was that the average FST differentiation Han populations was on the order of 0.002, while those differentiating Europeans was on the order of 0.009. Below are the various Han population, along with Japanese. CHB = Beijing, while CHD = Denver. The Denver sample is probably biased toward Cantonese and Fujianese, since most American Chinese are from these two groups. As a point of reference, here are South Asian genetic distances.

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