Journal of Human Genetics

, Volume 51, Issue 1, pp 47–58 | Cite as

Dual origins of the Japanese: common ground for hunter-gatherer and farmer Y chromosomes

  • Michael F. HammerEmail author
  • Tatiana M. Karafet
  • Hwayong Park
  • Keiichi Omoto
  • Shinji Harihara
  • Mark Stoneking
  • Satoshi Horai
Original Article


Historic Japanese culture evolved from at least two distinct migrations that originated on the Asian continent. Hunter-gatherers arrived before land bridges were submerged after the last glacial maximum (>12,000 years ago) and gave rise to the Jomon culture, and the Yayoi migration brought wet rice agriculture from Korea beginning ~2,300 years ago. A set of 81 Y chromosome single nucleotide polymorphisms (SNPs) was used to trace the origins of Paleolithic and Neolithic components of the Japanese paternal gene pool, and to determine the relative contribution of Jomon and Yayoi Y chromosome lineages to modern Japanese. Our global sample consisted of >2,500 males from 39 Asian populations, including six populations sampled from across the Japanese archipelago. Japanese populations were characterized by the presence of two major (D and O) and two minor (C and N) clades of Y chromosomes, each with several sub-lineages. Haplogroup D chromosomes were present at 34.7% and were distributed in a U-shaped pattern with the highest frequency in the northern Ainu and southern Ryukyuans. In contrast, haplogroup O lineages (51.8%) were distributed in an inverted U-shaped pattern with a maximum frequency on Kyushu. Coalescent analyses of Y chromosome short tandem repeat diversity indicated that haplogroups D and C began their expansions in Japan ~20,000 and ~12,000 years ago, respectively, while haplogroup O-47z began its expansion only ~4,000 years ago. We infer that these patterns result from separate and distinct genetic contributions from both the Jomon and the Yayoi cultures to modern Japanese, with varying levels of admixture between these two populations across the archipelago. The results also support the hypothesis of a Central Asian origin of Jomonese ancestors, and a Southeast Asian origin of the ancestors of the Yayoi, contra previous models based on morphological and genetic evidence.


Japanese populations Y-SNPs Y-STRs Jomon Yayoi Paleolithic Neolithic Migrations 



We thank Ji Park and Alan Redd for technical assistance and data analysis, and Elizabeth Wood for comments on earlier versions of the manuscript. This research was supported by NSF grant OPP-9806759 to M.F.H.

Supplementary material

10038_2005_322_ESM_supp.pdf (73 kb)
(PDF 72 KB)


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Copyright information

© The Japan Society of Human Genetics and Springer-Verlag 2005

Authors and Affiliations

  • Michael F. Hammer
    • 1
    • 2
    Email author
  • Tatiana M. Karafet
    • 1
  • Hwayong Park
    • 3
  • Keiichi Omoto
    • 4
  • Shinji Harihara
    • 5
  • Mark Stoneking
    • 6
  • Satoshi Horai
    • 7
  1. 1.Division of BiotechnologyUniversity of ArizonaTucsonUSA
  2. 2.Anthropology DepartmentUniversity of ArizonaTucsonUSA
  3. 3.Korea Institute of Oriental MedicineDaejonSouth Korea
  4. 4.International Research Centre for Japanese StudiesKyotoJapan
  5. 5.Department of Biological SciencesUniversity of TokyoTokyoJapan
  6. 6.Max Planck Institute for Evolutionary AnthropologyLeipzigGermany
  7. 7.The Graduate Institute for Advanced StudiesHayamaJapan

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