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Am J Hum Genet. 2011 Jul 15;89(1):154-61. doi: 10.1016/j.ajhg.2011.05.030. Epub 2011 Jul 7.

Indian Siddis: African descendants with Indian admixture.

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1
Centre for Cellular and Molecular Biology, Council of Scientific and Industrial Research, Hyderabad, India.

Abstract

The Siddis (Afro-Indians) are a tribal population whose members live in coastal Karnataka, Gujarat, and in some parts of Andhra Pradesh. Historical records indicate that the Portuguese brought the Siddis to India from Africa about 300-500 years ago; however, there is little information about their more precise ancestral origins. Here, we perform a genome-wide survey to understand the population history of the Siddis. Using hundreds of thousands of autosomal markers, we show that they have inherited ancestry from Africans, Indians, and possibly Europeans (Portuguese). Additionally, analyses of the uniparental (Y-chromosomal and mitochondrial DNA) markers indicate that the Siddis trace their ancestry to Bantu speakers from sub-Saharan Africa. We estimate that the admixture between the African ancestors of the Siddis and neighboring South Asian groups probably occurred in the past eight generations (∼200 years ago), consistent with historical records.

PMID:
21741027
PMCID:
PMC3135801
DOI:
10.1016/j.ajhg.2011.05.030
[Indexed for MEDLINE]
Free PMC Article

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