文献类型： 外文期刊
作者： Yang, Xin 1 ; Xian, Yuanrong 1 ; Li, Zhenhui 1 ; Wang, Zhijun 1 ; Nie, Qinghua 1 ;
作者机构： 1.South China Agr Univ, Coll Anim Sci, State Key Lab Conservat & Utilizat Subtrop Agrobi, Lingnan Guangdong Lab Agr, Guangzhou 510642, Peoples R China
2.Minist Agr, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Natl Local Joint Engn Res Ctr Livestock Breeding, Guangzhou 510642, Peoples R China
3.Minist Agr, Key Lab Chicken Genet Breeding & Reprod, Guangzhou 510642, Peoples R China
4.South China Agr Univ, Coll Anim Sci, Guangzhou 510642, Peoples R China
关键词： single nucleotide polymorphism; carcass traits; association analysis
期刊名称：ANIMALS （ 影响因子：3.231； 五年影响因子：3.312 ）
ISSN： 2076-2615
年卷期： 2022 年 12 卷 7 期
页码：
收录情况： SCI
摘要： Simple Summary With the progress of society, the demand for meat is increasing; therefore, how to improve the efficiency of breeding, reduce environmental pollution, and reduce the cost of breeding have become urgent priorities. Abdominal fat is a redundant part of the production of chickens. Thus, reducing abdominal fat deposition is increasingly vital in chicken breeding. Studies have shown that G0S2 is a crucial gene in regulating fat metabolism, and its single nucleotide polymorphism (SNP) was significantly associated with chicken production traits in previous studies. The present study aimed to identify SNPs of the G0S2 gene and analyze whether they were associated with chicken carcass traits, including abdominal fat weight. The present study results can provide practical information for molecular marker-assisted breeding of chicken carcass traits. Gene single nucleotide polymorphisms can be used as auxiliary markers in molecular breeding and are an effective method to improve production performance. G0S2 is a key gene involved in regulating fat metabolism, but little research has been conducted on this gene regarding its role in poultry. In this study, the specialized commercial partridge chicken strain G0S2 gene was cloned and sequenced, and the relationship between the SNP sites on G0S2 and the carcass traits of chickens was investigated. The results showed that a total of seven SNPs were detected on G0S2 (g.102G > A, g.255G > A, g.349C > T, g.384A > G, g.386G > A, g.444G > A, g.556G > A). Two sites are located in the coding region and five sites are located in the 3 '-UTR. SNPs located in the coding region are synonymous mutations. g.444G > A has a significant correlation with abdominal fat weight. The chickens with AG and GG genotypes have the highest abdominal fat weight, while the AA genotype is lower. The g.102G > A genotype has a significant correlation with live and abdominal fat weight. The live weight and abdominal fat weight of the chickens with AA and AG genotypes are at a higher level and have a larger gap than the GG genotype. Chickens with the AA genotype in g.556G > A had the lowest fat weight. The results of present study can provide practical information for molecular marker-assisted breeding of chicken carcass traits.
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