Investigation of TG gene variants and their effects on growth, carcass composition, and meat quality traits in Chinese steers
文献类型： 外文期刊
作者： Zhang, L. P. 1 ; Gan, Q. F. 2 ; Hou, G. Y. 3 ; Gao, H. J. 1 ; Li, J. Y. 1 ; Xu, S. Z. 1 ;
作者机构： 1.Chinese Acad Agr Sci, Key Lab Farm Anim Genet Resources & Utilizat, Minist Agr China, Inst Anim Sci, Beijing 100193, Peoples R China
2.Fujian Agr & Forestry Univ, Coll Anim Sci, Fuzhou, Fujian, Peoples R China
3.Chinese Acad Trop Agr Sci, Inst Trop Crop Genet Resources, Danzhou, Hainan, Peoples R China
关键词： Cattle;Thyroglobulin gene;Polymorphism;Growth trait;Carcass composition trait;Meat quality trait
期刊名称：GENETICS AND MOLECULAR RESEARCH （ 影响因子：0.764； 五年影响因子：0.912 ）
ISSN： 1676-5680
年卷期： 2015 年 14 卷 2 期
页码：
收录情况： SCI
摘要： Thyroid hormones play an important role in regulating metabolism and can affect metabolism-related traits such as fat deposition. The thyroglobulin (TG) gene produces the precursor of thyroid hormones and has been proposed as a candidate gene for a quantitative trait locus with an effect on fat deposition. In this study, we identified 4 novel single nucleotide polymorphisms (SNPs) in the 5' flanking region of the TG gene using a DNA sequencing method. The SNP marker association analysis indicated that the T1355C SNPs were significantly associated with meat percentage (P < 0.05). A significant association between the G1356A polymorphism and live weight and loin muscle area was also detected (P < 0.05). However, no significant association was found between 4 SNPs and the other growth, carcass composition, and meat quality traits including intramuscular fat. The results of this study suggest that TG gene-specific SNPs may be a useful marker for growth traits in marker-assisted selection programs in beef cattle.
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