遗传 ›› 2006, Vol. 28 ›› Issue (10): 1224-1229.

• 研究论文 • 上一篇    下一篇

比格犬MC4R基因多态性与体重相关性的研究

张轶博1;巴彩凤2;苏玉虹3;曾瑞霞3   

  1. 1. 锦州医学院免疫与病原生物学教研室, 锦州 121001; 2. 锦州医学院实验动物中心, 锦州 121001; 3. 锦州医学院科学实验中心, 锦州 121001
  • 出版日期:2006-10-01 发布日期:2006-10-01

Relationship Between MC4R Gene Polymorphyism and Body Weight Trait in Beagle Dogs

ZHANG Yi-Bo1; BA Cai-Feng2; SU Yu-Hong3;ZENG Rui-Xia3   

  1. 1. Department of Immunology and Pathogenic Biology, Jinzhou Medical College, Jinzhou 121001, China; 2. Experimental Animal Center, Jinzhou Medical College, Jinzhou 121001, China; 3.Scientific Experimental Center, Jinzhou Medical College, Jinzhou 121001, China3.Scientific Experimental Center, Jinzhou Medical College, Jinzhou
  • Online:2006-10-01 Published:2006-10-01

摘要: 为了分析比格犬黑素皮质素受体-4基因多态性与犬体重的关系, 根据犬MC4R基因DNA外显子序列, 设计MC4R基因特异PCR引物1对, 犬DNA经PCR扩增, 克隆和测序, 寻找和确定犬MC4R基因的多态性位点, 分析多态性与犬体重的关系。结果在比格犬MC4R基因中发现2处单碱基缺失突变, 1个单碱基颠换变异, 存在Psh AⅠ酶切位点, 并基于PshAⅠ酶切位点建立了PCR-RFLP技术。统计分析显示犬MC4R基因型与体重显著相关, 可以考虑将MC4R基因作为犬体重的候选基因。

关键词: 犬, MC4R基因, 多态性, 体重

Abstract: The relationship between MC4R gene polymorphism and body weight in beagle dogs was analyzed. Using gene-specific primers based on canine MC4R exonic sequences a gene fragment was PCR amplified, cloned and sequenced to identify potential polymorphisms. The relationship between a MC4R gene polymophism detected by PCR-RFLP and canine body weight was analyzed. Three variants were found in beagle dog MC4R DNA sequence, of which two were deletions and one was a transversion which created a PshAⅠ site that could be detected by PCR-RFLP. A statistically significant relationship between this polymorphism and body weight was found. MC4R gene could be a candidate modifier gene for canine body weight.

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