不同品种BMPR-IB基因多态性与产羔数及发情季节的相关性研究  

Relationship between Polymorphism of BMPR-IB Gene and Litter Size and Sexual Season for Different Sheep Breeds

作　　者：孙洪新[1] 敦伟涛[1] 陈晓勇[1] 田树军[2] 谭薇 

机构地区：[1]河北省畜牧兽医研究所,河北保定071000 [2]河北农业大学动物科技学院,河北保定071000 [3]中牧实业股份有限公司技术中心,北京100070

出　　处：《湖南农业科学》2011年第2期147-149,共3页Hunan Agricultural Sciences

基　　金：河北省科技支撑计划项目(06220402D-3)

摘　　要：利用PCR-RFLP方法对不同品种绵羊BMPR-IB基因的基因型进行了分析测定,并对BMPR-IB基因多态性与产羔数和羊发情季节的关系进行了研究。结果表明:各基因型在不同品种间分布极不平衡;同一品种,不同基因型羊的总体平均产羔数不同,表现为BB型>B+型>++型。研究发现部分杂交羊明显表现为季节性发情,可能和品种及个体的基因型有关。Using PCR-RFLP method to analyzing and determining genotype of bone morphogenetic protein receptor type IB gene（BMPR-IB） in different sheep breeds,and the relationship between polymorphism of BMPR-IB gene and litter size as well as sexual season were analyzed.The results showed that the gene and genotype frequency of BMPR-IB gene was significantly different in these breeds;same sheep breed with different genotypes had different total average litter size,which showed as BBB＋＋＋（P0.01）.The results also showed that a part of hybrid sheep obviously showed a seasonal oestrus,it may relate to the different sheep breeds and different sheep genotypes.

关 键 词：BMPR-IB基因多态性 产羔数 发情季节 相关性 

分 类 号：S858.26[农业科学—临床兽医学]