摘要
猪繁殖性状遗传力低,表型选择基本无效。因此,近年来研究遗传标记与猪繁殖性状的相互关系成为人们探索的热点。研究表明,血病抑制因子(LIF)具有促进附植前胚胎发育的功能,是胚胎正常附植必须的生长因子。检测了长白猪LIF基因外显子3中C>T突变的基因型,分析了该基因与长白猪繁殖性状的相关关系。结果表明,AA和AB基因型母猪的产仔数接近,均显著或极显著高于BB基因型。
The heritabilities of porcine reproductive traits are low and response to phenotypic selection is slow.It becomes a hot research topic that the association between genetic markers and reproductive traits in recent years.The growth factor,leukemia inhibitory factor（LIF） can promote pre-implantation embryo development.LIF silence results in failure of embryo implantation.The SNP CT of exon 3 of LIF was genotyped in a Landrace population.The results demonstrated that the sows of AA and AB genotypes had similar litter sizes,both significantly or highly significantly higher than those of the sows of BB genotypes.
出处
《广东农业科学》
CAS
CSCD
北大核心
2011年第9期139-141,共3页
Guangdong Agricultural Sciences
基金
国家自然科学基金(30871781)
广东省自然科学基金(8151064201000035)
