Phasing S*′ haplotypes. Distribution of the proportion of S*-significant single nucleotide polymorphisms (SNPs) with the derived alleles on a single phased haplotype per S*-significant region per test genome. Note that only one of the two phased haplotypes per genome, the one which carries the derived allele at >0.5 of all S*-significant SNPs, is shown here. Red and green bars show the frequency clusters of haplotypes detected for East Asian and Western European genomes, respectively, included in the 1000 Genomes Project, Phase I release.