›› 2015, Vol. 42 ›› Issue (5): 1232-1239.doi: 10.16431/j.cnki.1671-7236.2015.05.030

• 遗传繁育 • 上一篇    下一篇

三穗鸭肌细胞增强因子基因多态性与屠宰性状的相关性分析

易恒洁1,4, 李辉1,2,3, 杨胜林1,2,3, 彭邦星1,2,3, 赵忠海1,2,3   

  1. 1. 贵州大学动物科学学院, 贵阳 550025;
    2. 贵州省动物遗传育种与繁殖重点实验室, 贵阳 550025;
    3. 贵州大学高原山地动物遗传育种与繁殖教育部重点实验室, 贵阳 550025;
    4. 贵州省遵义市正安县畜牧产业发展办公室, 遵义 563400
  • 收稿日期:2014-09-09 出版日期:2015-05-20 发布日期:2015-06-02
  • 通讯作者: 李辉 E-mail:ellenlihui@sina.cn
  • 作者简介:易恒洁(1987-),女,重庆人,硕士,研究方向:动物遗传育种与繁殖,E-mail:yihengjie502@163.com
  • 基金资助:
    教育部科学技术研究重点项目"贵州省地方鸭品种屠宰性状相关基因的克隆与SNPs检测"(211168);贵州省科技厅农业重大专项[黔科合重大专项字[(2012)6004号];《三穗鸭国家标准》制定与养殖技术规程编制横向(H120183)

Polymorphisms of MEF2A Gene and its Relationship with Slaughter Traits in Sansui Duck

YI Heng-jie1,4, LI Hui1,2,3, YANG Sheng-lin1,2,3, PENG Bang-xing1,2,3, ZHAO Zhong-hai1,2,3   

  1. 1. College of Animal Science, Guizhou University, Guiyang 550025, China;
    2. Key Laboratory of Animal Genetics, Breeding and Reproduction, Guizhou Province, Guiyang 550025, China;
    3. Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China;
    4. Zhengan County Livestock Industry Development Office, Guizhou Province, Zunyi 563400, China
  • Received:2014-09-09 Online:2015-05-20 Published:2015-06-02

摘要: 为了解三穗鸭肌细胞增强因子(myocyte enhancer factor 2A,MEF2A)SNPs与屠宰性状的相关性,本研究以60只三穗鸭为研究对象,采用PCR-SSCP方法结合PCR产物直接测序技术对三穗鸭MEF2A基因多态性进行检测,并进行SNPs与屠宰性状各指标的相关分析。结果表明,在MEF2A基因中共发现了2个SNPs:第11外显子的g.47915G>A位点和g.47918G>A位点,g.47915G>A位点发生的G/A突变使密码子由GAA变为AAA,翻译出的氨基酸由谷氨酸变成赖氨酸,g.47918G>A位点的G/A突变引起的密码子由GAT变成AAT,翻译出的氨基酸由天冬氨酸变成天冬酰胺。SNPs与屠宰性状的关联性分析表明,g.47915G>A和g.47918G>A位点影响全净膛率。这一结果揭示了MEF2A基因的多态性对三穗鸭屠体性状具有重要的影响。

关键词: 三穗鸭; 肌细胞增强因子; 屠宰性状

Abstract: To understand the relationship between single nucleotide polymorphism sites (SNPs) of myocyte enhancer factor 2A (MEF2A) gene and slaughter traits in Sansui duck, a total of 60 individuals of Sansui ducks were selected to investigate in this study, direct sequencing of PCR and PCR-SSCP methods were used on single nucleotide polymorphisms of MEF2A gene, and genetic effects of its on slaughter traits were analyzed.The results showed that two SNPs which include g.47915G>A and g.47918G>A of exon 11 were found in MEF2A gene, and the G/A mutation in the g.47915G>A SNP resulted in the change of codon from GAA to AAA, and the coding amino acid from Glu to Lys, and the G/A mutation in the g.47918G>A SNP resulted in the change of codon from GAT to AAT, and the coding amino acid from Asp to Asn.The result of association of SNPs with slaughter traits showed various results were as follows:g.47915G>A and g.47918G>A had affected the eviscerated percentage.This result revealed that the polymorphism of MEF2A gene had basilic influence on slaughter traits.

Key words: Sansui duck; myocyte enhancer factor 2A (MEF2A); slaughter traits

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