Detecting novel Indel variants within theGHRgene and their associations with growth traits in Luxi Blackhead sheep
文献类型： 外文期刊
作者： Akhatayeva, Zhanerke 1 ; Li, Haixia 1 ; Mao, Cui 2 ; Cheng, Haijian 2 ; Zhang, Guoping 2 ; Jiang, Fugui 2 ; Meng, Xian 1 ;
作者机构： 1.Northwest A&F Univ, Coll Anim Sci & Technol, Key Lab Anim Genet Breeding & Reprod Shaanxi Prov, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China
2.Shandong Acad Agr Sci, Inst Anim Sci & Vet Med, Shandong Key Lab Anim Dis Control & Breeding, Jinan 250100, Peoples R China
3.Shandong Normal Univ, Coll Life Sci, Jinan, Peoples R China
4.Shandong Liaocheng Luxi Blackhead Sheep Farm, Liaocheng, Shandong, Peoples R China
关键词： Growth hormone receptor gene (GHR); marker-assisted selection (MAS); insertion; deletion (indel); growth traits
期刊名称：ANIMAL BIOTECHNOLOGY （ 影响因子：2.282； 五年影响因子：1.702 ）
ISSN： 1049-5398
年卷期：
页码：
收录情况： SCI
摘要： The growth hormone is important in the regulation of metabolism and energy homeostasis and acts through a growth hormone receptor (GHR). In this work, genetic variations within the ovineGHRgene were identified and tested for associations with body morphometric traits in Chinese Luxi Blackhead (LXBH) sheep. Novel deletion loci in the LXBHGHRgene included P2-del-23 bp and P8-del-23 bp indel variants. The polymorphic information content (PIC) was 0.329 in P2-del-23 bp and 0.257 in P8-del-23 bp. Moreover, both indel polymorphisms were not at Hardy-Weinberg equilibrium (p < 0.05) in the LXBH population. Statistical analyses revealed that the P2-del-23 bp and P8-del-23 bp indels were significantly associated (p < 0.05) with several growth traits in rams and ewes, including body weight, body height, chest depth, chest width, chest circumference, cannon circumference, paunch girth and hip width. Among the tested sheep, the body traits of those with genotype DD were superior to those with II and ID genotypes, suggesting that the 'D' allele was responsible for the positive effects on growth traits. Thus, these results indicate that the P2-del-23 bp and P8-del-23 bp indel sites and the DD genotype can be useful in marker-assisted selection in sheep.
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