Haplogroup K2b1 (Y-DNA)

Haplogroup K2b1
Possible time of origin	30,000-40,000
Possible place of origin	Southeast Asia; Oceania.
Ancestor	K2b (P331)
Descendants	S (K2b1a) and M (K2b1b)
Defining mutations	P397, P399

Haplogroup K2b1, known sometimes as haplogroup MS, is a human Y-DNA haplogroup, defined by SNPs P397 and P399. It has a complex, diverse and not-yet fully understood internal structure; its downstream descendants include the major haplogroups Haplogroup M (P256) and Haplogroup S (M230).

It is not clear at present whether the basal paragroup K2b1* is carried by any living males. Individuals carrying subclades of K2b1 are found primarily among Papuan peoples, Micronesian peoples, indigenous Australians, and Polynesians.

K2b1 is a direct descendant of K2b – known previously as Haplogroup MPS.

Its only primary branches are: the major haplogroups S (B254), also known as K2b1a (and previously known as Haplogroup S1 or K2b1a4) and M (P256), also known as K2b1b (previously K2b1d).

K2b1 is strongly associated with the indigenous peoples of Melanesia (especially the island of New Guinea) and Micronesia, and to a lesser extent Polynesia, where it is generally found only among 5–10% of males. It is found in 83% of males in Papua New Guinea, and up to 60% in the Aeta of the Philippines. The vast majority of living males carrying K2b1 are members of downstream subclades within the major haplogroups M (also known as K2b1b) and S (K2b1a).

...
Wikipedia