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Association of SNP rs80659072 in the ZRS with polydactyly in Beijing You chickens

文献类型： 外文期刊

作者： Chu, Qin 1 ; Yan, Zhixun 1 ; Zhang, Jian 1 ; Usman, Tahir 2 ; Zhang, Yao 1 ; Liu, Hui 1 ; Wang, Haihong 1 ; Geng, Ailian; 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Anim Husb & Vet Med, Beijing, Peoples R China

2.Abdul Wali Khan Univ Mardan, Coll Vet Sci & Anim Husb, Garden Campus, Mardan, Pakistan

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2017 年 12 卷 10 期

页码：

收录情况： SCI

摘要： The Beijing You chicken is a Chinese native breed with superior meat quality and a unique appearance. The G/T mutation of SNP rs80659072 in the Shh long-range regulator of GGA2 is highly associated with the polydactyly phenotype in some chicken breeds. In the present study, this SNP was genotyped using the TaqMan detection method, and its association with the number of toes was analyzed in a flock of 158 birds of the Beijing You population maintained at the Beijing Academy of Agriculture and Forestry Sciences. Furthermore, the skeletal structure of the digits was dissected and assembled in 113 birds. The findings revealed that the toes of Beijing You chickens were rich and more complex than expected. The plausible mutation rs80659072 in the zone of polarizing activity regulatory sequence (ZRS) in chickens was an essential but not sufficient condition for polydactyly and polyphalangy in Beijing You chickens. Several individuals shared the T allele but showed normal four-digit conformations. However, breeding trials demonstrated that the T allele could serve as a strong genetic marker for five-toe selection in Beijing You chickens.

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