摘要
采用PCR-Alu Ⅰ-RFLP技术检测长白猪、大白猪以及长大杂种的PRLR基因位点多态性,并分析了PRLR各基因型与繁殖性状的相关性。结果表明,3个猪群中均有A和B两个等位基因存在,其中B等位基因频率占有优势。利用最小二乘分析研究了该多态位点对初产、经产和所有胎次母猪的繁殖性状的影响,结果表明不同基因型母猪的总产仔数、产活仔数和初生窝重的差异均未达显著水平,但呈BB<AA<AB趋势。进一步分析发现经产、所有胎次母猪的PRLR各基因型之间断奶成活数有显著性影响(P<0.05)。
Polymorphism of PRLR gene in the Landrace, Large White and Landrace × Large White pigs were studied by using PCR - Alu - RFLP. Relationship between the genotypes of PRLR gene and reproduction trait of the swine was analyzed. The result showed that there were alleles A and B at the locus of PRLR gene in the 3 swine populations, with a higher frequency of the allele B. The correlation between the polymorphic locus of PRLR gene and the reproduction trait in the first parity, later parities and all parities of the swine was analyzed by using the least square analysis. There were no significant differences between the different genotypes in TNB, NBA and BW, but a trend of BB〈AA〈AB existed. It was further found that there was a significant difference in NBW between different genotypes in later parities and all parities of swine （P〈0.05）.
出处
《福建农业学报》
CAS
2008年第2期137-140,共4页
Fujian Journal of Agricultural Sciences
基金
福建省发改委项目([2005]527号)
