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当前位置: 首页 > 文章 > 边鸡IGF-ⅠR基因AluⅠ位点多态性及其对生长性状和繁殖性状的遗传效应分析 中国畜牧兽医 2017,44 (3) 813-818
Position: Home > Articles > Study on the Polymorphisms of IGF-ⅠR Gene Alu Ⅰ Locus and Genetic Effect on Growth and Reproduction Traits in Bian Chicken China Animal Husbandry & Veterinary Medicine 2017,44 (3) 813-818

边鸡IGF-ⅠR基因AluⅠ位点多态性及其对生长性状和繁殖性状的遗传效应分析

作  者：
吴鹏飞;王冬;张向前;张丽;丁馥香;张跟喜
单  位：
扬州大学动物科学与技术学院;山西省农业科学院畜牧兽医研究所;中国农业科学院家禽研究所
关键词：
边鸡;胰岛素样生长因子-Ⅰ受体基因;生长性状;繁殖性状;PCR-RFLP
摘  要：
为了寻找与边鸡生长性状和繁殖性状相关的遗传标记,本试验采用PCR-RFLP技术检测边鸡类胰岛素生长因子Ⅰ受体(insulin-like growth factorⅠreceptor,IGF-ⅠR)基因AluⅠ位点的多态性,并分析该多态位点对边鸡生长性状和繁殖性状的遗传效应。结果显示,边鸡IGF-ⅠR基因AluⅠ位点存在多态性,在外显子2的376bp处有1个G→A突变,产生了GG、GA和AA 3种基因型,基因型频率分别为0.687、0.296和0.017,GG为优势基因型;G等位基因频率为0.835,为优势等位基因。卡方适合性检验结果表明,该基因座位在边鸡群体中处于哈代-温伯格平衡状态(P>0.05)。相关分析结果表明,在8、14、16和18周龄时,GG基因型个体的体重显著高于GA基因型(P<0.05),GG基因型个体的开产体重极显著高于GA基因型个体(P<0.01),但并不能说明该位点可以作为影响边鸡繁殖性状的遗传标记。IGF-ⅠR基因外显子2的AluⅠ位点(G→A)可能是影响边鸡生长性状的一个遗传标记。
译  名：
Study on the Polymorphisms of IGF-ⅠR Gene Alu Ⅰ Locus and Genetic Effect on Growth and Reproduction Traits in Bian Chicken
作  者：
WU Peng-fei;WANG Dong;ZHANG Xiang-qian;ZHANG Li;DIGN Fu-xiang;ZHANG Gen-xi;College of Animal Science and Technology,Yangzhou University;Poultry Institute,Chinese Academy of Agricultural Sciences;Shanxi Livestock and Poultry Breeding Station;
关键词：
Bian chicken;;IGF-ⅠR gene;;growth traits;;reproduction traits;;PCR-RFLP
摘  要：
Single nucleotide polymorphisms(SNPs)in exon 2of insulin-like growth factorⅠ receptor(IGF-ⅠR)gene were detected by PCR-RFLP in Bian chicken,which was to find the correlation markers of growth and reproduction traits in Bian chicken.The results showed that AluⅠsite displayed polymorphic,and a G→A mutation at the position of the 376 bp in exon 2was occurred.There were three genotypes(GG,GA and AA),the genotypes frequencies were 0.687,0.296 and 0.017,respectively,GG genotype was the dominant genotype,the frequency of G allele was 0.835,which was the dominant allele.This site was in Hardy-Weinberg equilibrium(P>0.05).Correlation analysis showed that GG genotype had significantly higher body weight than those of GA genotype at the age of 8,14,16 and 18weeks(P<0.05);The GG geno type had extremely significantly higher body weight at first egg than those of GA genotype(P<0.01),but it didn't mean that this locus could be used as a genetic marker for reproduction traitsin Bian chicken.This results suggested that the AluⅠsite(G→A)in exon 2of IGF-ⅠR gene could be used as a genetic marker for growth traits in Bian chicken.

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