作　　者： ; ; ; ; ; ; ; ;

机构地区： 江西教育学院

出　　处： 《江西农业大学学报》 2011年第1期117-122,共6页

摘　　要： 家禽繁殖内分泌调控机制和血管活性肠肽I型受体(vasoactive intestinal peptide receptor-1,VIPR-1)基因的体内体外表达实验证明,VIPR-1基因参与了繁殖行为的调控。研究以鸡VIPR-1基因的C1704887T与C1715301T位点作为繁殖性状的候选标记,对512只清远麻鸡进行基因型检测并分析其与繁殖性状的相关性。研究表明:位于内含子6的位点C1704887T与40周龄、43周龄以及54周龄的总产蛋数和总正常蛋数显著相关(P<0.05),等位基因C有利于产蛋;位于内含子8的位点C1715301T与30周总畸形蛋数显著相关(P<0.05);这2个位点组成的二倍型与开产日龄呈显著的相关性(P<0.05),但这2个位点与开产性状无显著相关。研究结果提示:位点C1704887T可作为产蛋量的标记辅助选择的潜在分子标记。 Vasoactive intestinal peptide receptor-1（VIPR-1） was proved to be involved in the regulation of reproduction behavior in chickens with evidence of endocrine mechanism and expression in vivo and in vitro.In this study,C1704887T and C1715301T of VIPR-1 gene were used as candidate markers to analyze their associations with reproduction traits in 512 Qingyuan partridge chickens.The markers-trait association analyses showed that,C1704887T in intron 6 was significantly associated with the total number of eggs and total numbers of qualified eggs at 40 w（P〈0.05）,43 w（P〈0.05）,as well as 54 w age（P〈0.05）,and allele C was positive to egg production.Significant association（P〈0.05） was found between C1715301T in intron 8 and the total number of oafish eggs at 30 w age（P〈0.05）.The haplotype block composed of C1704887T and C1715301T was significantly associated with the age of the first egg（P〈0.05）.All the results indicated that C1704887T might be used as a potencial molecular marker of the MAS program for egg production.

关 键 词： 清远麻鸡 基因 位点 位点 繁殖性状

领　　域： [农业科学] [农业科学]