Publication: The Origin and Composition of Korean Ethnicity Analyzed by Ancient and Present-Day Genome Sequences
Issued Date
2020-03-27
Resource Type
ISSN
17596653
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2-s2.0-85085532698
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Mahidol University
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SCOPUS
Bibliographic Citation
Genome Biology and Evolution. Vol.12, No.5 (2020), 553-565
Suggested Citation
Jungeun Kim, Sungwon Jeon, Jae Pil Choi, Asta Blazyte, Yeonsu Jeon, Jong Il Kim, Jun Ohashi, Katsushi Tokunaga, Sumio Sugano, Suthat Fucharoen, Fahd Al-Mulla, Jong Bhak The Origin and Composition of Korean Ethnicity Analyzed by Ancient and Present-Day Genome Sequences. Genome Biology and Evolution. Vol.12, No.5 (2020), 553-565. doi:10.1093/gbe/evaa062 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/57616
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Title
The Origin and Composition of Korean Ethnicity Analyzed by Ancient and Present-Day Genome Sequences
Abstract
© 2020 The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. Koreans are thought to be an ethnic group of admixed northern and southern subgroups. However, the exact genetic origins of these two remain unclear. In addition, the past admixture is presumed to have taken place on the Korean peninsula, but there is no genomic scale analysis exploring the origin, composition, admixture, or the past migration of Koreans. Here, 88 Korean genomes compared with 91 other present-day populations showed two major genetic components of East Siberia and Southeast Asia. Additional paleogenomic analysis with 115 ancient genomes from Pleistocene hunter-gatherers to Iron Age farmers showed a gradual admixture of Tianyuan (40 ka) and Devil's gate (8 ka) ancestries throughout East Asia and East Siberia up until the Neolithic era. Afterward, the current genetic foundation of Koreans may have been established through a rapid admixture with ancient Southern Chinese populations associated with Iron Age Cambodians. We speculate that this admixing trend initially occurred mostly outside the Korean peninsula followed by continuous spread and localization in Korea, corresponding to the general admixture trend of East Asia. Over 70% of extant Korean genetic diversity is explained to be derived from such a recent population expansion and admixture from the South.