›› 2007, Vol. 34 ›› Issue (2): 86-88.

• 疾病防治 • 上一篇    下一篇

片形吸虫Cold-SSCP鉴别方法的建立

邓国祥1,张汉云2,陈蓓蓉1,李秋燕1,林瑞庆1,马妮妮1,朱兴全1
  

  1. 1.华南农业大学兽医学院,广州 510642; 2.广州市番禺区市桥城区畜牧兽医站,广州 511400
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-02-20 发布日期:2007-02-20

Development of a Cold-SSCP Technique for the Identification of Fasciola Spp

DENG Guoxiang1,ZHANG Hanyun2,CHEN Beirong1,LI Qiuyan1,LIN Ruiqing1, MA Nini1, ZHU Xingquan1
  

  1. 1.College of Veterinary Medicine, South China Agricultural University,Guangzhou 510642,China; 2.Shiqiao Animal Husbandry and Veterinary Station, Panyu District, Guangzhou 511400, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-20 Published:2007-02-20

摘要: 以采自我国不同地区的片形吸虫虫体为研究对象,PCR扩增出核糖体DNA (rDNA)的第一内转录间隔区(ITS-1)序列,然后采用非同位素的单链构象多态性(Cold-SSCP)方法分析PCR产物,对不同地区片形吸虫进行分子鉴定。所有样品经Cold-SSCP分析显示2种带型。样品测序及序列分析结果表明,第1种为肝片形吸虫带型,另1种为大片形吸虫带型。本研究建立了区分大片形吸虫和肝片形吸虫的ColdSSCP方法,可用于这2种吸虫的分子流行病学调查,从而为片形吸虫分子生物学的进一步研究奠定了基础。

关键词: 片形吸虫; rDNA; ITS-1; Cold-SSCP

Abstract: A nonisotopic single strand conformation polymorphism (ColdSSCP) technique was established to differentiate fasciola hepatica from fasciola gigantica from different geographical locations in China using the first internal transcribed spacers (ITS1) of ribosomal DNA (rDNA) as genetic marker. The partial ITS1 was amplified by PCR from individual fasciola and the amplicons were subjected to nondenaturing gel electrophoresis. ColdSSCP analyses showed that fhepatica and fgigantica displayed distinct SSCP profiles, allowing their equivocal differentiation from each other. Sequencing analyses supported the results of ColdSSCP. The establishment of the ColdSSCP approach for the identification and differentiation of
fhepatica and fgigantica has important implications for further studies of fasciola spp. 

Key words: fasciola; rDNA; ITS-1; Cold-SSCP

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