中国畜牧兽医2012，Vol.39Issue(10)：181-184,4.
撒坝猪胰岛素样生长因子-Ⅰ基因多态性及其与部分生长性状的关联分析
The Polymorphism of IGF-Ⅰ Gene and its Relationship with some Growth Traits in Saba Pig
摘要
Abstract
The expression products of insulin-like growth factor- Ⅰ (IGF- Ⅰ ) gene play an important role in muscle growth of pigs. In this research, IGF- Ⅰ gene was chosen as candidate genes for growth traits of Saba pigs. The Hha Ⅰ polymorphism of the gene was investigated by using PCR-RFLP technology, and the relationship between the polymorphism and 12 growth traits was analyzed. The results showed that there was a higher degree of polymorphisms on IGF- Ⅰ gene in the population. AA, AB, BB genotypes of IGF- Ⅰ gene were detected in Saba pigs, which frequency were 0. 3473, 0. 5149, 0. 1378, respectively. The frequency of A and B were 0. 6048 and 0. 3952, respectively. The gene loci was in Hardy-Weinberg equilibration. The genetic variation of IGF Ⅰ gene of Saba pigs had significant influence on growth traits (P<0. 05 or P<0. 01). The favorable genotype of the body weight and the daily gains at different growth stages was AB genotype,and the favorable genotype of the body size traits at 6 months was BB genotype except partial traits was AB genotype. Combining with the previous results, it could be primarily deduced that IGF- Ⅰ gene was probably a major gene or a QTL linked gene that associated with growth traits in pigs.关键词
撒坝猪/IGF-Ⅰ基因/多态性/生长性状Key words
Saba pig/ IGF- Ⅰ gene polymorphism/ growth traits分类
农业科技引用本文复制引用
丁艳,鲁绍雄,连林生..撒坝猪胰岛素样生长因子-Ⅰ基因多态性及其与部分生长性状的关联分析[J].中国畜牧兽医,2012,39(10):181-184,4.基金项目
云南省"十五"科技攻关项目"高档优质瘦肉猪配套系选育及其产业化研究"资助(2001NG39). （2001NG39）
