Haplogroup K2b1 (Y-DNA)
| Haplogroup K2b1 | |
|---|---|
| Possible time of origin | 30,000-40,000 |
| Possible place of origin | Southeast Asia; Oceania. |
| Ancestor | M (K2b1b) |
| Defining mutations | P397, P399 [1][2] |
Haplogroup K2b1, known sometimes as haplogroup MS, is a human
It is not clear at present whether the basal
indigenous Australians, and Polynesians
.
Structure
K2b1 is a direct descendant of
K2b
– known previously as Haplogroup MPS.
Its only primary branches are the major haplogroups M (P256), also known as K2b1b (previously K2b1d).
Distribution
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.
Studies of
Torres Strait Islander males belonged to downstream subclades of K2b1. That is, up to 27% indigenous Australian males carry haplogroup S1a1a1 (S-P308; previously known as K2b1a1 or K-P308),[4] and one study found that approximately 2.0% – i.e. 0.9% (11 individuals) of the sample in a study in which 45% of the total was deemed to be non-indigenous – belonged to haplogroup M1 (M-M4; also known as M-M186 and known previously as haplogroup K2b1d1). All of these males carrying M1 were Torres Strait Islanders.[5]
(The other Y-DNA haplogroups found were: basal K2* [K-M526], C1b2b [M347; previously Haplogroup C4], and basal C* [M130].)
| Population | K2b1 (including Haplogroups M & S) as a % [6] | ||
|---|---|---|---|
| Papua New Guinea | 82.76% | ||
| New Zealand | 0% | ||
| Fiji | 60.75% | ||
| Solomon Islands | 30% | ||
| French Polynesia | 08.00% | ||
| Vanuatu | 18.5% | ||
| Guam | 33.3% (small sample size) | ||
| Samoa | 08.04% | ||
| Kiribati | 0% (small sample size) | ||
| Tonga | 23% M haplogroup in one study and 26% s haplogroup in a separate study and told in that study to be up to 43% haplogroup m and haplogroup s there | Micronesia FDR | 66.67% |
| Marshall Islands | 63.64% | ||
| Palau | 61.5% small sample size | ||
| Cook Islands | 03.9% | ||
| Wallis and Futuna | 26% | ||
| Tuvalu | 36% | ||
| Nauru | 28.6% (small sample size) | ||
| Niue | 0% (small sample size) | ||
| Tokelau | 50% (small sample size) | ||
| Hawaii | 20% (small sample size from FTDNA) | ||
| Aboriginal Australians | 20% (657 samples; 56% assumed to be non-indigenous) [5] | ||
| Timor | 6% | ||
| Aeta | 0% | Chinese | 0% |
| Filipinos | 0% | ||
| Malaysia | 02.40% ( small sample size ) | ||
| Flores | 0% ( Samples includes diverse ethnicities ) | ||
| Sulawesi | 11.3% ( Samples includes diverse ethnicities ) | ||
| Eastern Indonesia (Wallacea) | 25.9% ( Samples includes diverse ethnicities ) | ||
| Java | 0% | ||
| Bali | 0.9% | ||
| Sumatra | 0% | ||
| Borneo (Indonesia) | 05.80% ( samples includes diverse ethnic minorities ) | ||
| West Papua | 52.6% | ||
| Papua Province | 82.6% | ||
| Sumba | 25.2% | ||
Chuukkese people (Micronesia) |
76.5% | ||
Pohnpeian people (Micronesia) |
70% (small sample size) |
References
- ^ "PhyloTree y - Minimal y tree".
- ^ PMID 24896152.
- S2CID 23291764.
- ^ Karafet 2014
- ^ a b Nagle, N. et al., 2015, "Antiquity and diversity of aboriginal Australian Y-chromosomes", American Journal of Physical Anthropology (epub ahead of print version; abstract).
- ^ (i. e. individuals indigenous to Oceania are assumed to be K2b1)
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Footnotes
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