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The phylogenetic and geographic structure of Y-chromosome haplogroup R1a
- Peter A Underhill1,
- G David Poznik2,
- Siiri Rootsi3,
- Mari Järve3,
- Alice A Lin4,
- Jianbin Wang5,
- Ben Passarelli5,
- Jad Kanbar5,
- Natalie M Myres6,
- Roy J King4,
- Julie Di Cristofaro7,
- Hovhannes Sahakyan3,8,
- Doron M Behar3,9,
- Alena Kushniarevich3,
- Jelena Šarac3,10,
- Tena Šaric3,10,
- Pavao Rudan10,11,
- Ajai Kumar Pathak3,
- Gyaneshwer Chaubey3,
- Viola Grugni12,
- Ornella Semino12,13,
- Levon Yepiskoposyan8,
- Ardeshir Bahmanimehr14,
- Shirin Farjadian15,
- Oleg Balanovsky16,
- Elza K Khusnutdinova17,18,
- Rene J Herrera19,
- Jacques Chiaroni7,
- Carlos D Bustamante1,
- Stephen R Quake5,20,21,
- Toomas Kivisild3,22 &
- …
- Richard Villems3,23
European Journal of Human Geneticsvolume 23, pages124–131 (2015)Cite this article
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Abstract
R1a-M420 is one of the most widely spread Y-chromosome haplogroups; however, its substructure within Europe and Asia has remained poorly characterized. Using a panel of 16 244 male subjects from 126 populations sampled across Eurasia, we identified 2923 R1a-M420 Y-chromosomes and analyzed them to a highly granular phylogeographic resolution. Whole Y-chromosome sequence analysis of eight R1a and five R1b individuals suggests a divergence time of∼25 000 (95% CI: 21 300–29 000) years ago and a coalescence time within R1a-M417 of∼5800 (95% CI: 4800–6800) years. The spatial frequency distributions of R1a sub-haplogroups conclusively indicate two major groups, one found primarily in Europe and the other confined to Central and South Asia. Beyond the major European versus Asian dichotomy, we describe several younger sub-haplogroups. Based on spatial distributions and diversity patterns within the R1a-M420 clade, particularly rare basal branches detected primarily within Iran and eastern Turkey, we conclude that the initial episodes of haplogroup R1a diversification likely occurred in the vicinity of present-day Iran.
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Acknowledgements
AAL thanks Ancestry DNA for support. PAU thanks CDB and Professor Michael Snyder for support. GDP was supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1147470. This work was supported by the European Union European Regional Development Fund through the Centre of Excellence in Genomics, by the Estonian Biocentre and the University of Tartu, by the European Commission grant 205419 ECOGENE to the EBC, by the Estonian Basic Research Grant SF 0270177s08 and by Institutional Research Funding from the Estonian Research Council IUT24-1. JS and TS were supported by the Croatian Ministry of Science, Education, and Sports grant Population structure of Croatia—anthropogenic approach (No. 196-1962766-2751 to PR). AKP was supported by European Social Fund's Doctoral Studies and Internationalisation Programme DoRa. VG and OS were supported by the Italian Ministry of the University: Progetti Ricerca Interesse Nazionale 2012. SNPs not previously submitted have been deposited to dbSNP (http://www.cbi.nlm.nih.gov/SNP/; ss947849426–947850190).
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Authors and Affiliations
Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
Peter A Underhill & Carlos D Bustamante
Program in Biomedical Informatics and Department of Statistics, Stanford University, Stanford, CA, USA
G David Poznik
Estonian Biocentre and the Department of Evolutionary Biology, University of Tartu, Tartu, Estonia
Siiri Rootsi, Mari Järve, Hovhannes Sahakyan, Doron M Behar, Alena Kushniarevich, Jelena Šarac, Tena Šaric, Ajai Kumar Pathak, Gyaneshwer Chaubey, Toomas Kivisild & Richard Villems
Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
Alice A Lin & Roy J King
Department of Bioengineering, Stanford University, Stanford, CA, USA
Jianbin Wang, Ben Passarelli, Jad Kanbar & Stephen R Quake
Ancestry DNA, Provo, UT, USA
Natalie M Myres
UMR 7268 ADES, Aix-Marseille Université/EFS/CNRS, Marseille, France
Julie Di Cristofaro & Jacques Chiaroni
Laboratory of Ethnogenomics, Institute of Molecular Biology, National Academy of Sciences, Yerevan, Armenia
Hovhannes Sahakyan & Levon Yepiskoposyan
Molecular Medicine Laboratory, Rambam Health Care Campus, Haifa, Israel
Doron M Behar
Institute for Anthropological Research, Zagreb, Croatia
Jelena Šarac, Tena Šaric & Pavao Rudan
Croatian Academy of Sciences and Arts, Zagreb, Croatia
Pavao Rudan
Dipartimento di Biologia e Biotecnologie ‘Lazzaro Spallanzani’, Università di Pavia, Pavia, Italy
Viola Grugni & Ornella Semino
Centro Interdipartimentale ‘Studi di Genere’, Università di Pavia, Pavia, Italy
Ornella Semino
Department of Medical Genetic, Shiraz University of Medical Sciences, Shiraz, Iran
Ardeshir Bahmanimehr
Department of Immunology, Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
Shirin Farjadian
Research Centre for Medical Genetics, Russian Academy of Medical Sciences, Moscow, Russia
Oleg Balanovsky
Institute of Biochemistry and Genetics, Ufa Scientific Center of Russian Academy of Sciences, Ufa, Russia
Elza K Khusnutdinova
Department of Biology, Bashkir State University, Ufa, Russia
Elza K Khusnutdinova
Department of Human and Molecular Genetics, College of Medicine, Florida International University, Miami, FL, USA
Rene J Herrera
Department of Applied Physics, Stanford University, Stanford, CA, USA
Stephen R Quake
Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA
Stephen R Quake
Division of Biological Anthropology, University of Cambridge, Cambridge, UK
Toomas Kivisild
Estonian Academy of Sciences, Tallinn, Estonia
Richard Villems
- Peter A Underhill
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- G David Poznik
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- Alena Kushniarevich
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- Jelena Šarac
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- Tena Šaric
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- Pavao Rudan
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- Viola Grugni
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- Ornella Semino
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- Levon Yepiskoposyan
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- Ardeshir Bahmanimehr
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- Shirin Farjadian
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- Oleg Balanovsky
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- Elza K Khusnutdinova
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Correspondence toPeter A Underhill.
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PAU consulted for and has stock in, and CDB is on the advisory board of a project at 23andMe. CDB is on the scientific advisory boards of Personalis, Inc.; InVitae (formerly Locus Development, Inc.); and Ancestry DNA. The remaining authors declare no conflict of interest.
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Underhill, P., Poznik, G., Rootsi, S.et al. The phylogenetic and geographic structure of Y-chromosome haplogroup R1a.Eur J Hum Genet23, 124–131 (2015). https://doi.org/10.1038/ejhg.2014.50
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