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Correlation between Polymorphism of Neuropeptide Y Gene and Traits at First Laying of Wenchang Chicken

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摘要 [ Objective] The paper presents the polymorphism of neuropeptide Y gene （NPY） and its relationship with traits at first laying in Wen- chang chicken in order to provide information for breeding of high-yielding Wenchang chicken. [Method] The polymorphism of NPYgene at Dra I site was detected by PCR-RFLP, and the genotypes and the genetic stability were determined. The correlation between the polymorphism and traits at first laying （age, body weight and egg weight） was also analyzed. [Result] There were three kinds of genotype of NPYgene at Dra I site in Wenchang chicken, designated as AA, AB and BB; the distribution of these genotypes was consistent with the Hardy -Weinberg law; age and egg weight were not significantly different among the three genotypes （ P 〉0.05）, and body weight was extremely significantly different （ P 〈0.01 ）. [ Conclusion] The NPYgene of Wenchang chicken is in Hardy -Weinberg equilibrium at Dra I site, and its genetic polymorphism affects body weight at first laying. [ Objective] The paper presents the polymorphism of neuropeptide Y gene （NPY） and its relationship with traits at first laying in Wen- chang chicken in order to provide information for breeding of high-yielding Wenchang chicken. [Method] The polymorphism of NPYgene at Dra I site was detected by PCR-RFLP, and the genotypes and the genetic stability were determined. The correlation between the polymorphism and traits at first laying （age, body weight and egg weight） was also analyzed. [Result] There were three kinds of genotype of NPYgene at Dra I site in Wenchang chicken, designated as AA, AB and BB; the distribution of these genotypes was consistent with the Hardy -Weinberg law; age and egg weight were not significantly different among the three genotypes （ P 〉0.05）, and body weight was extremely significantly different （ P 〈0.01 ）. [ Conclusion] The NPYgene of Wenchang chicken is in Hardy -Weinberg equilibrium at Dra I site, and its genetic polymorphism affects body weight at first laying.
作者 朱文奇 李慧芳 吴蓉蓉 宋卫涛 徐文娟 于吉英 肖小君 陈宽维
机构地区 中国农业科学院家禽研究所 扬州大学动物科学与技术学院 海南罗牛山文昌鸡育种有限公司
出处 《Animal Husbandry and Feed Science》 CAS 2009年第2期5-7,12,共4页 动物与饲料科学（英文版）
基金 国家科技支撑计划(2008BADB2B07) 国家高技术研究发展计划(2006AA10Z1D8) 农业行业专项研究计划(nyhyzx07-039) 现代农业产业技术体系建设专项资金~~
关键词 Wenchang chicken NPY gene Traits at first laying Wenchang chicken NPY gene Traits at first laying
分类号 S831 [农业科学—畜牧学]
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参考文献11

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  • 3MACLUSKY NJ, NAFTOLIN F, LERANTH C. Immunocytochemical evidence for direct synaptic connections between corticotroppin-re- leasing factor (CRF) gonadotropin-releasing hormone ( GnRH )- containing neurons in the preoptic area of the rat[J]. Brain Re,s, 1988, 439:391 -395.
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  • 8WU X. Study on the molecular rnarkers of egg-laying and egg quality traits in Wenchang chicken [ D]. Yangzhou: Yangzhou University, 2006. (in Chinese).
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  • 10WANG Q, WEN MY, ZHANG DX, etal. DraI-RFLP in chicken NPY gene and its genetic effect on age at first egg[Cl. The 10th Nation- al Symposium on Uvestock and Poultry Genetic Markers, 2006:85 -87. (in Chinese).
Animal Husbandry and Feed Science
2009年 第2期

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