Haplogroup C-M8

Haplogroup C-M8 (C1a1)
Migration route of haplogroup C
Possible time of origin41,900 YBP[1]
51,800 YBP[2]
Coalescence age11,650 YBP[3]
4,900 YBP[4]
Possible place of originUnknown
Ancestor(Grandparent) Haplogroup C1
Defining mutationsM8, M105, M131, P122
Highest frequenciesJapanese people, Ryukyuans
Likely migration route of haplogroup C in East Asia.[5]

Haplogroup C-M8 also known as Haplogroup C1a1 is a Y-chromosome haplogroup. It is one of two branches of Haplogroup C1a, one of the descendants of Haplogroup C-M130.

It has been found in about 6% (2.3% to 16.7%) of modern males sampled in Japan and was traditionally considered to be a Y-DNA haplogroup descended from Jōmon people[6][7], though in recent years this assumption has been challenged[5], especially as all Y-DNA recovered from Jomon-period remains to date belongs to haplogroup D[8]. In academic sources, it may have been observed in one individual in a sample collected from South Korea[9] and in commercial testing in two individuals who have reported an origin in Liaoning province of China and four individuals who reported an origin in Korea.[4]

The MRCA with its sister haplogroup C-V20 dates back to 40,000[1] to 50,000[2] years ago. Diffusion of existing subtypes of C-M8 is estimated to have begun about 12,000 years ago[3], though commercial YDNA testing has given more recent estimates[4].

Frequency in Japan

Frequency in samples of Japanese from various regions:[7]

History

Haplogroup C1a1 (M8) is mostly unique to the Japanese archipelago, and its migration route is enigmatic.[16]

References

  1. 1 2 Zhong, H; Shi, H; Qi, XB; et al. (July 2010). ""(July 2010). "Global distribution of Y-chromosome haplogroup C-M130 reveals the prehistoric migration routes of African exodus and early settlement in East Asia". J. Hum. Genet. 55 (7): 428–35. doi:10.1038/jhg.2010.40. PMID 20448651.
  2. 1 2 3 Poznik, G. David; Xue, Yali; Mendez, Fernando L.; et al. (June 2016). "Punctuated bursts in human male demography inferred from 1,244 worldwide Y-chromosome sequences". Nature Genetics. 48 (6): 593–599. Bibcode:2016NaGen..48..593P. doi:10.1038/ng.3559. hdl:11858/00-001M-0000-002A-F024-C. PMC 4884158. PMID 27111036.
  3. 1 2 3 4 5 Hammer, MF; Karafet, TM; Park, H; et al. (2006). "Dual origins of the Japanese: common ground for hunter-gatherer and farmer Y chromosomes". J. Hum. Genet. 51 (1): 47–58. doi:10.1007/s10038-005-0322-0. PMID 16328082.
  4. 1 2 3 YFull Haplogroup YTree v14.02 at 22 April 2026
  5. 1 2 Wang, Chuan-Chao; Li, Hui (2013). "Inferring human history in East Asia from Y chromosomes". Investigative Genetics. 4 (1): 11. doi:10.1186/2041-2223-4-11. PMC 3687582. PMID 23731529.
  6. ↑ Hammer, Michael F; Karafet, Tatiana M; Park, Hwayong; Omoto, Keiichi; Harihara, Shinji; Stoneking, Mark; Horai, Satoshi (2006). "Dual origins of the Japanese: common ground for hunter-gatherer and farmer Y chromosomes". Journal of Human Genetics. 51 (1): 47–58. doi:10.1007/s10038-005-0322-0. PMID 16328082.
  7. 1 2 3 Nakahori, Yutaka; Iwamoto, Teruaki; Yamauchi, Aiko; Ewis, Ashraf A.; Shinka, Toshikatsu; Sato, Youichi (2014). "Overview of genetic variation in the Y chromosome of modern Japanese males". Anthropological Science. 122 (3): 131–136. doi:10.1537/ase.140709. ISSN 0918-7960.
  8. ↑ Adachi, Noboru; Kanzawa-Kiriyama, Hideaki; Nara, Takashi; Kakuda, Tsuneo; Nishida, Iwao; Shinoda, Ken-Ichi (2021). "Ancient genomes from the initial Jomon period: new insights into the genetic history of the Japanese archipelago". Anthropological Science. 129 (1): 13–22. doi:10.1537/ase.2012132.
  9. ↑ Kim, Soon-Hee; Kim, Ki-Cheol; Shin, Dong-Jik; Jin, Han-Jun; Kwak, Kyoung-Don; Han, Myun-Soo; Song, Joon-Myong; Kim, Won; Kim, Wook (2011). "High frequencies of Y-chromosome haplogroup O2b-SRY465 lineages in Korea: A genetic perspective on the peopling of Korea". Investigative Genetics. 2 (1): 10. doi:10.1186/2041-2223-2-10. PMC 3087676. PMID 21463511.
  10. ↑ Tajima, Atsushi; Hayami, Masanori; Tokunaga, Katsushi; Juji, T; Matsuo, M; Marzuki, S; Omoto, K; Horai, S (2004). "Genetic origins of the Ainu inferred from combined DNA analyses of maternal and paternal lineages". Journal of Human Genetics. 49 (4): 187–193. doi:10.1007/s10038-004-0131-x. PMID 14997363.
  11. 1 2 3 Shoji Totsuka, The Super Science High School Consortium, Youichi Sato, and Masashi Tanaka, "A study of the geographic distribution of Y chromosomal and mitochondrial DNA haplogroups in Japanese population by Super Science High School Consortium (SSH)." Anthropological Science (Japanese Series) Vol. 124(2), 85–91, 2016.
  12. ↑ Nonaka, I; Minaguchi, K; Takezaki, N (2007). "Y-chromosomal binary haplogroups in the Japanese population and their relationship to 16 Y-STR polymorphisms". Ann. Hum. Genet. 71 (4): 480–95. doi:10.1111/j.1469-1809.2006.00343.x. hdl:10130/491. PMID 17274803.
  13. ↑ Xue, Yali; Zerjal, Tatiana; Bao, Weidong; Zhu, Suling; Shu, Qunfang; Xu, Jiujin; Du, Ruofu; Fu, Songbin; Li, Pu; Hurles, Matthew E.; Yang, Huanming; Tyler-Smith, Chris (2005). "Male Demography in East Asia: A North–South Contrast in Human Population Expansion Times". Genetics. 172 (4): 2431–2439. doi:10.1534/genetics.105.054270. PMC 1456369. PMID 16489223.
  14. ↑ Nohara, Hirofumi; Maeda, Ikuko; Hisazumi, Rinnosuke; Uchiyama, Taketo; Hirashima, Hiroko; Nakata, Masahito; Rika, Ohno; Hasegawa, Tetsuro; Shimizu, Kenshi (2021). "Geographic distribution of Y-STR haplotypes and Y-haplogroups among Miyazaki Prefecture residents". Japanese Journal of Forensic Science and Technology. 26 (1): 17–27. doi:10.3408/jafst.778.
  15. 1 2 3 4 5 6 7 8 Sato, Youichi; Shinka, Toshikatsu; Ewis, Ashraf A.; Yamauchi, Aiko; Iwamoto, Teruaki; Nakahori, Yutaka (2014). "Overview of genetic variation in the Y chromosome of modern Japanese males". Anthropological Science. 122 (3): 131–136. doi:10.1537/ase.140709.
  16. ↑ Wang, Chuan-Chao; Li, Hui (3 June 2013). "Inferring human history in East Asia from Y chromosomes". Investigative Genetics. 4 (1): 11. doi:10.1186/2041-2223-4-11. PMC 3687582. PMID 23731529.