m122

In human population genetics, haplogroups define the major lineages of direct paternal (male) lines back to a shared common ancestor in Africa. Haplogroup O-M122 （also known as Haplogroup O2 (formerly Haplogroup O3)）is an Eastern Eurasian Y-chromosome haplogroup. The lineage ranges across Southeast Asia and East Asia, where it dominates the paternal lineages with extremely high frequencies. It is also significantly present in Central Asia, especially among the Naiman tribe of Kazakhs.This lineage is a descendant haplogroup of haplogroup O-M175.

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