我国小尾寒羊多胎性状基因的研究进展

综述了小尾寒羊的FecB基因、BMPR-IB基因、BMP15基因和ESR基因的突变及其对产羔数的影响,表明:与FecB基因紧密连锁的遗传标记都与小尾寒羊的多胎性能有关系;BMPR-IB基因是影响小尾寒羊高繁殖力的一个主效基因,可以用于对小尾寒羊产羔数的辅助选择;BMP15基因中的突变位点对小尾寒羊的高繁殖力没有显著影响;ESR基因可能是控制小尾寒羊多胎性能的一个主效基因或与之存在紧密的遗传连锁。旨在为小尾寒羊主效基因的研究提供有益的参考。

The Progress of Prolific Trait Genes in Small Tail Han Sheep

Genetic effects on FecB gene mutation, BMPR-IB gene mutation, BMP15 gene mutation and ESR gene mutation of Small Tail Han Sheep were reviewed in this article in detail. The markers assisted with FecB gene all correlated with prolific trait of Small Tail Han Sheep; BMPR-IB gene was one of the major genes effecting high prolificacy of Small Tail Han Sheep and was able to select markers; The mutation of BMP15 gene had no significant effect on prolificacy of Small Tail Han Sheep; ESR gene was probably one of the major genes controlling prolific trait. The aim of this review is to provide reference for the study of Small Tail Han Sheep.