绵羊繁殖性能分子调控机制的研究进展  

Research Advance on Molecular Regulation Mechanism of the Reproductive Performance in Sheep

作　　者：赵玉琢 贺娜 李明明 邓玉婷 张军霞[1] ZHAO Yuzhuo;HE Na;LI Mingming;DENG Yuting;ZHANG Junxia(College of Agriculture and Animal Husbandry,Qinghai University,Xining810016)

机构地区：[1]青海大学农牧学院,西宁810016

出　　处：《中国草食动物科学》2023年第3期47-52,共6页China Herbivore Science

基　　金：青海大学科研训练项目(NKX202212);青海省科技计划项目(2020-ZJ-786);青海省“昆仑英才·乡村振兴人才”项目(青人才字(2020)9号)。

摘　　要：繁殖性状是衡量绵羊经济价值的重要指标之一,直接影响其养殖效益。我国除了小尾寒羊和湖羊为多胎品种外,大多数地方品种属单胎品种,繁殖率低,且繁殖性状遗传力低、繁殖周期长、选育进展缓慢,制约了绵羊产业的快速发展。近年来,随着生物技术的快速发展和绵羊重要繁殖基因研究的不断深入,分子标记辅助选择育种技术已得到广泛应用,在分子水平上进行早期选择育种,可大大缩短育种年限,加快育种进程。文章综述了褪黑素受体1A基因(MTNR1A)、绵羊多胎基因(FecB)、骨形态发生蛋白15基因(BMP15)、ESR2基因以及多个分子的调控机制,以期为绵羊育种实践提供参考。Sheep reproductive traits are one of the important indicators to measure their economic value,which directly affects the benefits of sheep breeding.In addition to Small-tailed Han sheep and Hu sheep in China,which are multiple breeds,most local breeds are singleton breeds.The low reproductive rate,low heritability of reproductive traits,long reproductive cycle and slow breeding progress of sheep restrict the rapid development of the sheep industry.In recent years,with the rapid development of biotechnology and sheep important breeding gene research in depth,the molecular marker-assisted selection breeding becomes possible,it can greatly shorten the breeding period and accelerate the breeding process.This paper reviewed the research progress of melatonin receptor 1A gene(MTNR1A),sheep multiple fetal gene(FecB),bone morphogenetic protein 15 gene(BMP15),ESR2 gene and multiple molecular regulatory mechanisms,in order to provide reference for sheep breeding practice.

关 键 词：绵羊 繁殖性能 分子辅助育种 

分 类 号：S826[农业科学—畜牧学]