Figure 1.

Data filtering steps used to prepare the combined data sets. Steps are shown in the order in which they were applied. Loci removed in one step were not subsequently considered. The numbers of loci or individuals removed are shown in red shaded boxes, numbers of loci whose genotypes were adjusted by a common size difference are shown in yellow shaded boxes (offset match), and numbers of loci whose genotypes matched in duplicate individuals are shown in green shaded boxes (exact match). The numbers of loci and individuals in the combined data set after each merging are shown in green shaded boxes. Sample sizes for each geographic region appear in Table 2. Key: ^†Two of the 751 loci in the initial Pacific Islander data set (ATA27A06N and ATA27A06P) genotype the same locus; ATA27A06P was included in the combined data set.