Polymorphism in NPY and IGF-I genes associate with reproductive traits in Wenchang chicken
文献类型: 外文期刊
第一作者: Li, H. F.
作者: Li, H. F.;Zhu, W. Q.;Chen, K. W.;Tang, Q. P.;Gao, Y. S.;Song, W. T.;Xu, H. L.;Wu, X.;Xu, H. L.
作者机构:
关键词: Chicken;NPY;IGF-I;reproduction;SNP
期刊名称:AFRICAN JOURNAL OF BIOTECHNOLOGY ( 影响因子:0.573; 五年影响因子:0.794 )
ISSN: 1684-5315
年卷期: 2009 年 8 卷 19 期
页码:
收录情况: SCI
摘要: Alleles of physiological candidate genes for reproductive traits, insulin-like growth factor-I (IGF-I) and neuropeptide Y (NPY) were assessed to determine the association with total egg production (NE), average days of continual egg-laying (ADCE) and number of double-yolked eggs (DYE) in Wenchang chicken (Chinese indigenous breed). PCR-RFLP method was used for genotypes identification. The frequency of restriction enzyme A/a alleles in the population was 0.46 (A) and 0.54 (a) for NPY. The frequency of restriction enzyme B/b alleles in the population was 0.53 (B) and 0.47 (b) for IGF-I, respectively. Four significant associations were found (P < 0.05): between NPY and NE (300 d) and between IGF-I polymorphism and NE (300 d), NE (400 d) and ADCE. Two significant effects were observed: for NPY and NE (300 d) and for IGF-I and NE (300 d). The current research supports the effects of NPY and IGF-I genes on reproductive traits of chickens.
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