Heterozygosity in 17 populations. In table at the bottom of each plot displayed the average and the standard deviation of He in each population sample. The sample information of each population is shown in Table 1. A: He were calculated from 55,561 SNPs shared by 17 populations. SD denotes standard deviation of the He values across 55,561 SNPs. B: He were calculated from haplotypes of 500 kb windows, SD denotes standard deviation of the He values across windows.