Polymorphism of Avian Leukosis Virus Subgroup E Loci Showing Selective Footprints in Chicken
文献类型: 外文期刊
第一作者: Chen, Weiguo
作者: Chen, Weiguo;Qu, Hao;Li, Chunyu;Luo, Chenglong;Wang, Jie;Yang, Chunfen;Shu, Dingming;Chen, Weiguo;Qu, Hao;Li, Chunyu;Luo, Chenglong;Wang, Jie;Yang, Chunfen;Shu, Dingming
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关键词: Avian leukosis virus subgroup E;Chicken;Polymorphism;Selective footprints
期刊名称:BIOCHEMICAL GENETICS ( 影响因子:1.89; 五年影响因子:1.959 )
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收录情况: SCI
摘要: Avian leukosis virus subgroup E (ALVE) is a family of endogenous retroviruses in the chicken genome. To investigate the genetic consequences of chicken domestication, we analyzed 18 ALVE loci in red jungle fowls, layers, broilers, and Chinese indigenous chickens. None of the ALVE loci tested were found in red jungle fowls, but 12 were present in domestic chickens. ALVE1 and ALVE16 are found in regions of the genome that harbor quantitative trait loci (QTL) affecting egg production traits. ALVE1 was fixed and ALVE16 was detected only in layers. By contrast, ALVE-b1, ALVE-b5, ALVE-b6, and ALVE-b8 integrated into regions of the genome that harbor QTL affecting meat production traits. Carrier frequencies of these four ALVE loci were high in broilers and low in Chinese local chickens; the loci were not found in the layers. This study demonstrated that insertionally polymorphic ALVE loci can illustrate the selective footprints in the chicken genome.
分类号: Q3
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