遗传 ›› 2008, Vol. 30 ›› Issue (4): 475-782.doi: 10.3724/SP.J.1005.2008.00475

• 研究报告 • 上一篇    下一篇

荧光-构象敏感凝胶电泳技术筛查上海市郊区野生小家鼠线粒体编码区SNP位点

范忠鹏1, 朱旺升1, 张超1, 周宇荀1, 李凯1, 梁银明1, 邢正宏2, 陈国强2, 柏熊2, 肖君华1 2   

  1. 1. 东华大学生物科学与技术研究所, 上海 201620;
    2. 上海市实验动物研究所-复旦大学-东华大学模式动物生物多样性联合实验室, 上海 201200

  • 收稿日期:2007-10-27 修回日期:2008-01-12 出版日期:2008-04-10 发布日期:2008-04-10
  • 通讯作者: 肖君华

SNP discovery by F-CSGE in the coding region of mitochondrial DNA in wild house mice from Shanghai suburb

FAN Zhong-Peng1, ZHU Wang-Sheng1, ZHANG Chao1, ZHOU Yu-Xun1, LI Kai1, LIANG Yin-Ming1, XING Zheng-Hong2, CHEN Guo-Qiang<   

  1. 1. Institute of Biology Science & Technology, Donghua University, Shanghai 201620, China; 2. Institute of Experimental Animals-Fudan University-Donghua University United Laboratory of Bio-Diversity of Model Animals, Shang-hai 201200, China
  • Received:2007-10-27 Revised:2008-01-12 Online:2008-04-10 Published:2008-04-10
  • Contact: XIAO Jun-Hua

摘要:

利用通用引物荧光PCR方案, 应用荧光-构象敏感凝胶电泳(fluorescence-based conformation sensitive gel elec-trophoresis, F-CSGE)和DNA直接测序分型技术, 对上海地区64只野生小家鼠线粒体DNA(mtDNA)编码区进行序列分析, 在上海市郊区野生小家鼠群体中初步检测mtDNA编码区SNP, 以发现合适的遗传位标用于野生小家鼠遗传多态性分析。结果发现: F-CSGE所有存在SNP突变的峰图中同源双链和异源双链峰电泳泳动距离差异均较为明显, 在检测未知SNP中无假阳性出现, 检测效率高。F-CSGE检出野生小鼠mtDNA编码区SNP 24个, 其中新发现SNP为16个。结果表明, F-CSGE可用于mtDNA编码区SNP检测, 新发现的SNP可作为遗传位标用以研究整个上海地区野生小家鼠的遗传结构和遗传多态性。

关键词: 野生小家鼠, 荧光-构象敏感凝胶电泳, 单核苷酸多态性, 线粒体DNA

Abstract:

This study was performed to discover SNPs for genetic polymorphism analysis of mitochondrial DNA from wild house mice. Universal primer florescent PCR, fluorescence-based conformation sensitive gel electrophoresis (F-CSGE) and DNA sequencing were conducted to analyze the coding region of mitochondrial DNA. Different types of unknown mutations were recorded by variable F-CSGE patterns without false positive. Twenty-four SNPs, sixteen of which were first discovered in the coding region of mitochondrial DNA, were found in 64 wild house mice from 4 districts in Shanghai. Therefore, F-CSGE was proved to be powerful technique for SNP discovery in the coding region mitochondrial DNA. The novel SNPs can be used as molecular markers to analyze population structure and genetic polymorphisms of the wild house mice in Shanghai.