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Histograms display the numbers of sequence differences among all possible pairs of sequences in the set of 70 individuals for 51 segregating sites in DFFRY, DBY, and UTY1, over 41,016 bp (A) and 53 individuals for 47 segregating sites in SMCY over 39,931 bp (B). The mean values and standard errors (SE) for human expansion times were estimated as described in the text.
