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Article Dans Une Revue PeerJ Année : 2015

Genetic analysis of Thai cattle reveals a Southeast Asian indicine ancestry

Résumé

Cattle commonly raised in Thailand have characteristics of [i]Bos indicus[/i] (zebu). We do not know when or how cattle domestication in Thailand occurred, and so questions remain regarding their origins and relationships to other breeds. We obtained genome-wide SNP genotypic data of 28 bovine individuals sampled from four regions: North (Kho-Khaolampoon), Northeast (Kho-Isaan), Central (Kho-Lan) and South (Kho-Chon) Thailand. These regional varieties have distinctive traits suggestive of breed-like genetic variations. From these data, we confirmed that all four Thai varieties are [i]Bos indicus[/i] and that they are distinct from other indicine breeds. Among these Thai cattle, a distinctive ancestry pattern is apparent, which is the purest within Kho-Chon individuals. This ancestral component is only present outside of Thailand among other indicine breeds in Southeast Asia. From this pattern, we conclude that a unique [i]Bos indicus[/i] ancestor originated in Southeast Asia, and native Kho-Chon Thai cattle retain the signal of this ancestry with limited admixture of other bovine ancestors.
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Dates et versions

hal-01273704 , version 1 (12-02-2016)

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Pongsakorn Wangkumhang, Alisa Wilantho, Philip J. Shaw, Laurence Flori, Katayoun Moazami-Goudarzi, et al.. Genetic analysis of Thai cattle reveals a Southeast Asian indicine ancestry. PeerJ, 2015, 3, ⟨10.7717/peerj.1318⟩. ⟨hal-01273704⟩
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