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Detection of Bovine TMEM95 p.Cys161X Mutation in 13 Chinese Indigenous Cattle Breeds

文献类型： 外文期刊

作者： Zhang, Sihuan 1 ; Peng, Kun 3 ; Zhang, Guoliang 1 ; Cao, Yang 1 ; Zhang, Meng 3 ; Chen, Hong 3 ; Lei, Chuzhao 3 ; Lan, Xi 1 ;

作者机构： 1.Jilin Acad Agr Sci, Branch Anim Husb, Changchun 130033, Jilin, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Beef Cattle Genet & Breeding, Changchun 130033, Jilin, Peoples R China

3.Northwest A&F Univ, Coll Anim Sci & Technol, Key Lab Anim Genet Breeding & Reprod Shaanxi Prov, Yangling 712100, Shaanxi, Peoples R China

关键词： Chinese indigenous cattle; molecular breeding; transmembrane protein 95 gene (TMEM95); male reproductive performance

期刊名称：ANIMALS （ 影响因子：2.752； 五年影响因子：2.942 ）

ISSN： 2076-2615

年卷期： 2019 年 9 卷 7 期

页码：

收录情况： SCI

摘要： Simple Summary Chinese indigenous cattle are economically important cattle breeds for animal husbandry development. The promotion and development of Chinese cattle breeds is essential. A previous study found that a nonsense mutation (rs378652941, c.483C > A, p.Cys161X) in bovine transmembrane protein 95 gene (TMEM95) seriously reduced reproductive performance in male Fleckvieh cattle; therefore, this locus was considered a candidate genetic marker in bovine marker-assisted selection (MAS) breeding. Until now, no study has identified this mutation in Chinese cattle breeds. Herein, we detected this c.483C > A mutation in 13 Chinese cattle breeds. Importantly, we found that this mutation did not exist at this locus in our analyzed breeds. Interestingly, we first identified a frameshift insertion/deletion (indel) mutation (NC_037346.1: g.27056998_27057000delCT) in the bovine TMEM95 gene in 11 cattle breeds. Together, the results of this study suggest that the mutation c.483C > A cannot serve as a genetic marker for molecular breeding among Chinese indigenous cattle breeds. Chinese indigenous cattle breeds have abundant genetic resources, which are valuable for the molecular breeding of cattle around the world. Thus, identifying important candidate genes and their genetic markers is very important for cattle molecular breeding. A previous study found that a nonsense mutation (rs378652941, c.483C > A, p.Cys161X) in the bovine transmembrane protein 95 gene (TMEM95) seriously reduced the reproductive performance in bulls, but few studies have detected this mutation in Chinese indigenous cattle breeds. Since the mutation c.483C > A may serve as a potential genetic marker for selecting higher fertility bulls, in the present study, using tetra-primer amplification refractory mutation system PCR (T-ARMS-PCR), forced PCR restriction fragment length polymorphism (forced PCR-RFLP), and DNA sequencing methods, the mutation c.483C > A was detected in 765 individuals from 13 Chinese cattle breeds. However, the results showed that this mutation did not exist at this locus in our analyzed breeds. Interestingly, we identified a newly frameshift insertion/deletion (indel) mutation (NC_037346.1: g.27056998_27057000delCT) in the bovine TMEM95 gene in 11 cattle breeds, which changed the location of the termination codon and changed the 16 amino acids in the C-terminal to 21 amino acids. Combined with previous studies, our study provides evidence that in Chinese cattle breeds the mutation c.483C > A cannot be used as a genetic marker in molecular breeding.

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