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Extensive intra- and inter-genetic admixture of Chinese gamecock and other indigenous chicken breeds revealed by genomic data

文献类型： 外文期刊

作者： Ren, Xufang 1 ; Guan, Zi 1 ; Li, Haiying 3 ; Wen, Junhui 1 ; Zhao, Xiurong 1 ; Wang, Gang 1 ; Zhang, Xinye 1 ; Wang, Huie 2 ; Zhang, Li 4 ; Yu, Fuqing 5 ; Qu, Lujiang 1 ;

作者机构： 1.China Agr Univ, Coll Anim Sci & Technol, Natl Engn Lab Anim Breeding, Beijing 100193, Peoples R China

2.Tarim Univ, Xinjiang Prod & Construction Corps, Key Lab Protect & Utilizat Biol Resources Tarim Ba, Alar 843300, Peoples R China

3.Xinjiang Agr Univ, Coll Anim Sci, Urumqi 830000, Peoples R China

4.Beijing Acad Agr & Forestry Sci, Inst Anim Husb & Vet Med, Beijing 100097, Peoples R China

5.Natl Anim Husb Stn, Beijing 100125, Peoples R China

关键词： genetic admixture; Chinese gamecock; genomic; single nucleotide polymorphism; cross breeding

期刊名称：POULTRY SCIENCE （ 影响因子：4.4； 五年影响因子：4.4 ）

ISSN： 0032-5791

年卷期： 2023 年 102 卷 7 期

页码：

收录情况： SCI

摘要： Genomic admixture is a widespread phe-nomenon among domestic animal breeds, including chickens. However, reports on admixture within Chinese gamecocks or other indigenous chickens are limited. This study focuses on the population genetic structure and admixture of 5 Chinese gamecock breeds and the admixture with 9 other indigenous Chinese chicken breeds. Our results showed that Turpan and Henan gamecocks were grouped into one cluster, whereas Luxi, Zhangzhou, and Xishuangbanna gamecocks were grouped into the other cluster. Gene flow occurred between Xishuangbanna and Turpan and Turpan and Luxi gamecocks. Simultaneously, gene flow was observed between gamecocks and indigenous chickens, such as Xishuangbanna and Wenchang. Ancestral com-ponent analysis indicated that modern domestic chick-ens in southern China played an important role in the history of the domestication of modern Chinese game-cock. Our study will be helpful in better understanding the domestication and evolution of Chinese gamecock.

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