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Genetic affinity among five different population groups in India reflecting a Y-chromosome gene flow.

Research paper by Anjana A Saha, Swarkar S Sharma, Audesh A Bhat, Awadesh A Pandit, Ramesh R Bamezai

Indexed on: 22 Dec '04Published on: 22 Dec '04Published in: Journal of Human Genetics



Abstract

Four binary polymorphisms and four multiallelic short tandem repeat (STR) loci from the nonrecombining region of the human Y-chromosome were typed in different Indian population groups from Uttar Pradeh (UP), Bihar (BI), Punjab (PUNJ), and Bengal (WB) speaking the Indo-Aryan dialects and from South India (SI) with the root in the Dravidian language. We identified four major haplogroups [(P) 1+, (C and F) 2+, (R1a) 3, (K) 26+] and 114 combinations of Y-STR haplotypes. Analyses of the haplogroups indicated no single origin from any lineage but a result of a conglomeration of different lineages from time to time. The phylogenetic analyses indicate a high degree of population admixture and a greater genetic proximity for the studied population groups when compared with other world populations.