二花脸猪产仔数性状的分子标记及其效应分析

摘要

采用PCR及PCR-RFLP技术对FSHβ、ESR和PRLR基因在二花脸猪群体内的多态性及对繁殖性状的影响进行了检测与分析。结果表明：108头二花脸猪中检测到FSHβ基因的AA和AB基因型,ESR和PRLR基因的AA、AB和BB 3种基因型。 FSHβ基因的AA基因型初产和经产的总产仔数( TNB)和产活仔数( NBA)均显著或极显著高于AB基因型；ESR基因的BB基因型初产及经产TNB和NBA均显著高于AB基因型和AA基因型；PRLR基因的AA基因型和AB基因型初产和经产TNB和NBA均高于BB基因型(P0.05)；ESR基因的AA基因型初产和经产BW高于AB和BB基因型(P0. 05). The BW of primip-arous or multiparous sows with AA genotype for ESR gene were higher than those with AB and BB genotypes (P< 0. 05), and the WW were higher than those with BB genotype ( P<0. 05 ) . The WW of primiparous or multiparous sows with BB genotype for PRLR gene were higher than those with AA genotype (P<0. 05). In conclusion, FSHβ, ESR and PRLR genes contributed to the reproductive traits in Erhualian sows, and could be used as important genetic markers for reproductive traits selection in Erhualian sows.