This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Y-DNA haplogroup O1 | |
|---|---|
| Name | O1 |
| Alternate names | O-F265, O-M119 (deprecated usage) |
| Origin date | ~25,000–40,000 years BP |
| Origin place | East Asia |
| Ancestor | CT? (through NO) |
| Descendants | O1a, O1b (and subclades) |
| Mutations | F265, M119 (historical), P203 (varies) |
Y-DNA haplogroup O1 is a major paternal lineage found predominantly in East and Southeast Asia, central to studies of population history involving Han Chinese, Japanese people, Koreans, Taiwanese indigenous peoples, and Austronesian peoples. It is widely discussed in genetic surveys alongside haplogroups such as Y-DNA haplogroup O2, Y-DNA haplogroup C2, Y-DNA haplogroup N-M231, Y-DNA haplogroup Q-M242, and Y-DNA haplogroup D-M174.
Haplogroup O1 appears in comparative analyses that include samples from Beijing, Seoul, Tokyo, Taipei, and Manila, and it features prominently in regional syntheses published by institutions like the Max Planck Society, University of Tokyo, Chinese Academy of Sciences, National Taiwan University, and the Smithsonian Institution. Geneticists examining O1 often relate results to archaeological sites such as Ban Chiang, Yayoi period, Hemudu culture, Luzon, and Lower Yangtze contexts in studies funded by agencies including the National Institutes of Health and the European Research Council.
Nomenclature for O1 has been refined through collaborations among groups like the Y Chromosome Consortium, the International Society of Genetic Genealogy, researchers at Harvard University, and laboratories at Chinese Academy of Sciences, producing trees that situate O1 within clades related to Haplogroup NO. Phylogenetic frameworks for O1 reference SNPs identified by teams at Broad Institute, Wellcome Sanger Institute, University College London, and private companies such as 23andMe and FamilyTreeDNA, and are discussed in comparative papers in journals associated with Nature, Science, and Proceedings of the National Academy of Sciences.
O1 shows high frequencies in populations sampled from Taiwan, Philippines, Vietnam, Thailand, and southern provinces of China such as Guangdong and Fujian, and lower frequencies among groups sampled in Korea, Japan, Mongolia, and Sakhalin. Population genetics surveys by teams at Peking University, Seoul National University, University of the Philippines, Chulalongkorn University, and the National University of Singapore report distribution patterns that are compared with data from World Health Organization datasets and regional census records from administrations in Beijing Municipal Government, Tokyo Metropolitan Government, and Manila City.
Major subclades conventionally recognized under O1 include branches historically labeled O1a and O1b, defined by SNPs reported in datasets curated by the Y Chromosome Consortium, the 1000 Genomes Project, the Human Genome Diversity Project, and researchers at Tsinghua University. Laboratories at the Max Planck Institute for Evolutionary Anthropology and the Wellcome Sanger Institute have cataloged marker mutations used to define sublineages, which are discussed in phylogeographic analyses alongside comparative haplogroups observed in studies from Kyoto University, University of Oxford, and the University of California, Berkeley.
Models for the origin and dispersal of O1 are debated in literature from groups at Fudan University, Osaka University, University of Cambridge, Columbia University, and Australian National University, which integrate data from coastal archaeology at Niah Caves, Ban Kao, and San Dieguito contexts and linguistic correlations with families such as Austronesian languages, Tai-Kadai languages, and Hmong–Mien languages. Proposed migrations involving O1 are framed relative to climatic events referenced in studies by the Intergovernmental Panel on Climate Change, paleoenvironmental research at Peking University, and radiocarbon chronologies maintained by the Australian National University Radiocarbon Dating Laboratory.
Anthropological discussions link O1 to demographic histories relevant to cultural complexes like the Yayoi period, Austronesian expansion, Luzon prehistoric, and Neolithic transitions in the Lower Yangtze, and engage scholars from institutions such as National Taiwan University, Kyoto University, Peking University, University of Hawaiʻi at Mānoa, and the Australian National University. Studies correlate Y-DNA patterns with remains curated by museums including the National Museum of Natural History (France), the Metropolitan Museum of Art, and the National Museum of China in analyses that touch on migrations also discussed by researchers associated with the Max Planck Institute for the Science of Human History.
Detection of O1 and its subclades uses SNP genotyping, whole Y-chromosome sequencing, and STR analysis performed in laboratories at Broad Institute, Wellcome Sanger Institute, BGI, Harvard Medical School, Johns Hopkins University, and private providers like AncestryDNA and FamilyTreeDNA. Major studies reporting O1 frequencies and phylogeny have been published by teams from Peking University, University of Tokyo, Seoul National University Hospital, University of California, Los Angeles, and the Institut Pasteur, frequently appearing in journals associated with Nature Communications, American Journal of Human Genetics, and Molecular Biology and Evolution.
Category:Y-DNA haplogroups