猪乳头数性状变异的遗传机制研究进展  

Research progress on the genetic mechanism of variation of nipple number traits in pigs

作　　者：罗柯 费隽文 柯娟 董凤翼 王嘉仪[1] 王大力 梁爽[1] 白春艳[1] 孙浩[1] 孙博兴[1] LUO Ke;FEI Junwen;KE Juan;DONG Fengyi;WANG Jiayi;WANG Dali;LIANG Shuang;BAI Chunyan;SUN Hao;SUN Boxing(College of Animal Science,Jilin University,Changchun 130062,China;Jilin University Agricultural Experimental Base,Changchun 130062,China)

机构地区：[1]吉林大学动物科学学院,长春130062 [2]吉林大学农业实验基地,长春130062

出　　处：《黑龙江畜牧兽医》2024年第17期18-25,31,111,共10页Heilongjiang Animal Science And veterinary Medicine

基　　金：吉林省科学技术厅重点研发项目(20230202066NC);吉林大学2023年研究生创新研究计划项目(2023CX246);吉林省发展和改革委员会创新能力建设项目(2021FGWCXNLJSSZ06)。

摘　　要：母猪乳头数与仔猪成活率和生长发育情况密切相关,是生产中评估种猪繁育能力的重要指标之一。猪乳头数在不同群体间差异较大,其遗传基础复杂,目前遗传机制尚未清晰。揭示乳头数遗传机制对改善种猪繁育能力有重要意义。近年来,与猪乳头数性状相关的数量性状基因座(quantitative trait locus,QTL)和候选基因被相继报道。文章归纳了猪乳头类型、分布、胚胎期的发育和不同品种乳头数的差异,从影响猪乳头数的QTLs和候选基因等角度对当前的研究进展进行了综述,以期为乳头数性状改良及其遗传机制解析研究提供参考。The number of sow nipples is closely related to the survival rate and growth of piglets,and is one of the important indexes to evaluate the breeding ability of breeding pigs in production.The number of pig nipples varies greatly among different populations,and its genetic basis is complex,but the genetic mechanism is not clear at present.It is important to reveal the genetic mechanism of nipple number for improving the breeding ability of breeding pigs.In recent years,quantitative trait locus(QTL)and candidate genes related to porcine nipple number traits have been reported successively.In this paper,the types,distribution,embryonic development and differences in nipple number of various pig breeds were summarized,and the current research progress was reviewed from the perspective of QTLs and candidate genes affecting nipple number of pigs,so as to provide references for the improvement of nipple number traits and the analysis of genetic mechanisms.

关 键 词：猪 乳头数 数量性状基因座 基因 遗传机制 

分 类 号：S828[农业科学—畜牧学]