A late Neolithic expansion of Y chromosomal haplogroup O2a1-M95 from east to west

doi:10.1111/jse.12147

J Syst Evol ›› 2015, Vol. 53 ›› Issue (6): 546-560.DOI: 10.1111/jse.12147

• Research Articles • Previous Articles

A late Neolithic expansion of Y chromosomal haplogroup O2a1-M95 from east to west

GaneshPrasad ArunKumar^1,2, Lan-Hai Wei³, Valampuri John Kavitha^1,4, Adhikarla Syama¹, Varatharajan Santhakumari Arun¹, Surendra Sathua⁵, Raghunath Sahoo⁶, R. Balakrishnan⁷, Tomo Riba⁸, Jharna Chakravarthy⁹, Bapukan Chaudhury¹⁰, Premanada Panda¹¹, Pradipta K Das¹², Prasanna K Nayak¹³, Hui Li³, Ramasamy Pitchappan^1,14*, and The Genographic Consortium

¹The Genographic Laboratory, School of Biological Sciences, Madurai Kamaraj University, Madurai 625021, India
²School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, India
³MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200433, China
⁴Department of Biotechnology, Mother Theresa University, Kodaikanal 624102, India
⁵Project Coordinator, Sarba Sikhya Abjhijan, Rayagada, Orissa 765001, India
⁶DND Agency-Bondo Project Leader (Retd), Rayagada Directorate, Bhubaneswar, Orissa 751004, India
⁷Roja Muthiah Research Library, Taramani, Chennai 600113, India
⁸Department of Geography, Rajiv Ghandhi University, Rnono Hills, Itanagar, Arunachal Pradesh 791112, India
⁹Department of Zoology, Rajiv Ghandhi University, Rnono Hills, Itanagar, Arunachal Pradesh 791112, India
¹⁰Department of Anthropology, Gauwhati University, Guwahati, Assam 781014, India ¹¹Department Anthropology, Sambalpur University, Jyoti Vihar, Sambalpur, Orissa 768019, India ¹²Department of Anthropology, Guru Ghasidas Central University, Bilaspur, Chattisgarh 495009, India ¹³Department of Anthropology, Utkal University, Vani Vihar, Bhubaneswar, Orissa 751004, India ¹⁴Genomics Laboratory, Chettinad Academy of Research and Education, Kelampakkam, Chennai 603103, India

Received:2014-10-03 Published:2015-11-30

Abstract

Abstract: The origin and dispersal of Y-Chromosomal haplogroup O2a1-M95, distributed across the Austro Asiatic speaking belt of East and South Asia, are yet to be fully understood. Various studies have suggested either an East Indian or Southeast Asian origin of O2a1-M95. We addressed the issue of antiquity and dispersal of O2a1-M95 by sampling 8748 men from India, Laos, and China and compared them to 3307 samples from other intervening regions taken from the literature. Analyses of haplogroup frequency and Y-STR data on a total 2413 O2a1-M95 chromosomes revealed that the Laos samples possessed the highest frequencies of O2a1-M95 (74% with >0.5) and its ancestral haplogroups (O2*-P31, O*-M175) as well as a higher proportion of samples with 14STR-median haplotype (17 samples in 14 populations), deep coalescence time (5.7 ± 0.3 Kya) and consorted O2a1-M95 expansion evidenced from STR evolution. All these suggested Laos to carry a deep antiquity of O2a1-M95 among the study regions. A serial decrease in expansion time from east to west: 5.7 ± 0.3 Kya in Laos, 5.2 ± 0.6 in Northeast India, and 4.3 ± 0.2 in East India, suggested a late Neolithic east to west spread of the lineage O2a1-M95 from Laos.

Key words: Laos, migration, Neolithic, NRY, O2a1-M95

GaneshPrasad ArunKumar, Lan-Hai Wei, Valampuri John Kavitha, Adhikarla Syama, Varatharajan Santhakumari Arun, Surendra Sathua, Raghunath Sahoo, R. Balakrishnan, Tomo Riba, Jharna Chakravarthy, Bapukan Chaudhury, Premanada Panda, Pradipta K Das, Prasanna K Nayak, Hui Li, Ramasamy Pitchappan, The Genographic Consortium. A late Neolithic expansion of Y chromosomal haplogroup O2a1-M95 from east to west[J]. J Syst Evol, 2015, 53(6): 546-560.

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A late Neolithic expansion of Y chromosomal haplogroup O2a1-M95 from east to west

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