Haplogroup D-M55

rdf:langString Haplogroup D-M55

rdf:langString D-M55

rdf:langString Haplogroup D-M55 (M64.1/Page44.1) also known as Haplogroup D1a2a is a Y-chromosome haplogroup. It is one of two branches of Haplogroup D1a. The other is D1a1, which is found with high frequency in Tibetans and other Tibeto-Burmese populations and geographical close groups. D is also distributed with low to medium frequency in Central Asia, East Asia, and Mainland Southeast Asia. Haplogroup D-M55 is found in about 33% of present-day Japanese males. It has been found in fourteen of a sample of sixteen or 87.5% of a sample of Ainu males in one study published in 2004 and in three of a sample of four or 75% of a sample of Ainu males in another study published in 2005 in which some individuals from the 2004 study may have been retested. It is currently the most common Y-DNA haplogroup in Japan if O1-F265 and O2-M122 (TMRCA approx. 30,000 ~ 35,000 ybp) are considered as separate haplogroups. It is considered that Haplogroup D-M55 was born in Japan 38,000-37,000 years before present. In 2017 it was confirmed that the Japanese branch of haplogroup D-M55 is distinct and isolated from other D-branches since more than 53,000 years ago. The split in D1a probably happened near the Tibetan Plateau.

rdf:langString M55, M57, M64.1, M179, P37.1, P41.1, P190, 12f2b

rdf:langString possibly Japanese archipelago