Associations of Gonadotropin-Releasing Hormone Receptor (GnRHR) and Neuropeptide Y(NPY) Genes’Polymorphisms with Egg-Laying Traits in Wenchang Chicken

被引：19

作者：

WU XuLI HuifangYAN MeijiaoTANG QingpingCHEN KuanweiWANG JinyuGAO Yu shiTU YunjieYU Yabo and ZHU Wenqi Institute of Poultry ScienceChinese Academy of Agricultural SciencesYangzhou PRChina College of Animal Science and TechnologyYangzhou UniversityYangzhou PRChina ^{[1
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机构：

来源：

Agricultural Sciences in China | 2007年 / 04期

关键词：

D O I：

暂无

中图分类号：

S831 [鸡];

学科分类号：

090502 [动物营养与饲料科学];

摘要：

Single nucleotide polymorphisms(SNP)of chicken gonadotropin-releasing hormone receptor(GnRHR)and neuropeptide Y(NPY)were selected to identify the genotypes of Wenchang(Chinese indigenous breed)chicken with restricton fragment length polymorphisms.The associations of the SNPs with the total egg production(NE),average days of continual laying(ADCL),and number of double-yolked eggs(DYE)traits were analyzed.The frequency of restriction enzyme A/a alleles in the population was for GnRHR 0.69(Bpu1102ⅠA)and 0.31(Bpu1102Ⅰa)and for NPY 0.46(Dra ⅠB)and 0.54(DraⅠb).Trait data from a total of 120 hens,which were purebredintroduced from Hainan Province,China from one generation were recorded.Two significant effects of genes'marker were found:for GnRHR and number of eggs (dominant;t=2.67,df=116)and NPY and number of eggs(additive;t=1.97,df=116).The current research supports the effects of GnRHR and NPY genes on egg-laying traits of chickens.

引用

页码：499 / 504

页数：6