Distribution of Y-chromosomal SNP-haplogroups between males from Ethiopia
Y-chromosomal SNPs are used in phylogenetical studies because in a paternal lineage the Y-SNP “set” is only changed by mutational events. Lower migration rates of males in the past in local scale cause different haplogroup distributions in closed populations. In the actual haplogroup tree (ISOGG 2008) 20 main haplogroups (A-T) are listed
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