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To the left, a simplified version of the Y-chromosome tree showing the phylogenetic relationships of the 16 sequenced chromosomes. LTRs without clusters of SNPs are not shown. The names of LTRs and SNPs are at the bottom and at the top, respectively. Square colours represent the allelic state for each SNP: White, ancestral allele; red, closely spaced derived SNPs arisen on the same branch of the Y phylogeny; green, «conventionally» derived SNPs.
