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Sci Rep. 2016 Jan 13;6:19166. doi: 10.1038/srep19166.

Genetic affinities of the Jewish populations of India.

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CSIR-Centre for Cellular and Molecular Biology, Hyderabad 500 007, India.
Department of Evolutionary Biology, Estonian Biocentre, Riia23b, Tartu, Estonia-51010.
Department of Anatomy, Amala Institute of Medical Sciences, Thrissur-680555, India.
Genome Foundation, Hyderabad 500007, India.


Due to the lack of written records or inscription, the origin and affiliation of Indian Jewish populations with other world populations remain contentious. Previous genetic studies have found evidence for a minor shared ancestry of Indian Jewish with Middle Eastern (Jewish) populations. However, these studies (relied on limited individuals), haven't explored the detailed temporal and spatial admixture process of Indian Jewish populations with the local Indian populations. Here, using large sample size with combination of high resolution biparental (autosomal) and uniparental markers (Y chromosome and mitochondrial DNA), we reconstructed genetic history of Indian Jewish by investigating the patterns of genetic diversity. Consistent with the previous observations, we detected minor Middle Eastern specific ancestry component among Indian Jewish communities, but virtually negligible in their local neighbouring Indian populations. The temporal test of admixture suggested that the first admixture of migrant Jewish populations from Middle East to South India (Cochin) occurred during fifth century. Overall, we concluded that the Jewish migration and admixture in India left a record in their genomes, which can link them to the 'Jewish Diaspora'.

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