Indian Siddis: African Descendants with Indian Admixture

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• 作者：Anish  ; M. Shah¹ ; ⁹ ; Rakesh Tamang¹ ; ⁹ ; Priya Moorjani² ; ³ ; ⁹ ; Deepa  ; Selvi Rani¹ ; Periyasamy Govindaraj¹ ; Gururaj Kulkarni⁴ ; Tanmoy Bhattacharya¹ ; Mohammed  ; S. Mustak⁵ ; L.V.K.S. Bhaskar¹ ; Alla  ; G. Reddy¹ ; Dharmendra Gadhvi¹ ; Pramod  ; B. Gai⁴ ; Gyaneshwer Chaubey⁶ ; Nick Patterson³ ; David Reich² ; ³ ; Chris Tyler-Smith⁷ ; Lalji Singh¹ ; ⁸ ; Kumarasamy Thangaraj¹ ; ^{thangs@ccmb.res.in"" rel=""nofollow}
• 刊名：The American Journal of Human Genetics
• 出版年：2011
• 出版时间：15 July 2011
• 年：2011
• 卷：89
• 期：1
• 页码：154-161
• 全文大小：822 K

文摘

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.