生物技术通报 ›› 2014, Vol. 0 ›› Issue (8): 59-64.

• 技术与方法 • 上一篇    下一篇

一种乌鳢与斑鳢线粒体PCR-RFLP鉴定方法

董传举1,2, 张松皓1, 陈坤慈3, 宋迎楠1,2, 徐鹏1, 孙效文1   

  1. 1.中国水产科学研究院生物技术研究中心, 北京 100141;
    2.上海海洋大学水产与生命学院, 上海 201306;
    3.中国水产科学院珠江水产研究所, 广州 510380
  • 修回日期:2014-01-03 出版日期:2014-08-15 发布日期:2014-08-01
  • 作者简介:作者简介: 董传举,男,博士研究生,研究方向:水产基因组学;E-mail:cjd1989@126.com

A PCR-RFLP Method for Channa argus and Channa maculate Discrimination

Dong Chuanju1,2, Zhang Songhao1, Chen Kunci3, Song Yingnan1,2, Xu Peng1, Sun Xiaowen1   

  1. 1. The Centre for Applied Aquatic Genomics, Chinese Academy of Fishery Sciences, Beijing 100141;
    2. College of Life Science and Technology, Shanghai Ocean University, Shanghai 201306;3. Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380
  • Revised:2014-01-03 Published:2014-08-15 Online:2014-08-01
  • Supported by:

    国家“863计划”项目(2011AA100401);农业部公益性行业科研专项项目(200903045)

摘要:

为了高效的鉴别乌鳢与斑鳢,采用PCR-RFLP技术,对乌鳢与斑鳢开展分子生物学鉴定方法研究。通过比对乌鳢和斑鳢线粒体全序列,发现1处单核苷酸多态性位点,可以明确区分两个物种。利用1对引物对乌鳢与斑鳢线粒体基因组该区域进行PCR扩增,用限制性内切酶EcoR I分别对扩增产物进行酶切,并用1.5%的琼脂糖凝胶检测酶切结果。PCR-RFLP检测结果显示,斑鳢的PCR扩增产物被EcoR I酶切后生成两个不同大小的片段,分别为315 bp和875 bp,乌鳢则保持不变。由此可将乌鳢与斑鳢在酶切图谱上鉴别出来。

关键词: 乌鳢, 斑鳢, 线粒体基因组, PCR-RFLP, 鉴定

Abstract:

In order to identificate Channa argus and C. maculate efficiently. We developed a PCR-RFLP method to conduct research in molecular biology. Briefly, two genomes of C. argus and C. maculate were aligned and compared, a SNP was identified which can discriminate two Channa species. A pair of primers was designed to amplify the mitochondrial DNA of both species, then digested by restriction enzyme EcoR I and test the digestion result by agarose gel of 1.5%. The result showed that the PCR product of C. maculate was digested by EcoR I that generate two fragments of 315 bp and 875 bp, while the PCR product of C. argus can not be digested by EcoR I. Thus, two Channa species were clearly discriminated.

Key words: Channa argus, Channa maculate, mtDNA, PCR-RFLP, Identification