中国寄生虫学与寄生虫病杂志 ›› 2006, Vol. 24 ›› Issue (6): 5-424.

• 论著 • 上一篇    下一篇

我国4省9株牛带绦虫RAPD分子鉴别分析

张科1;杨明2;包怀恩1   

  1. 1 贵阳医学院寄生虫学教研室, 贵阳 550004; 2 贵阳医学院生物学教研室, 贵阳 550004。
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-12-30 发布日期:2006-12-30
  • 通讯作者: 包怀恩

The Random Amplified Polymorphic DNA Identification of9 Taenia saginata Isolates from Four Provinces

ZHANG Ke1;YANG Ming2;BAO Huai-en1   

  1. Department of Parasitology,Guiyang Medical College,Guiyang 550004,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-12-30 Published:2006-12-30
  • Contact: BAO Huai-en

摘要: 目的 分别对4省9株牛带绦虫标本进行分子鉴别。方法 分别取台湾桃园株(TW1),贵州都匀株(DY1、DY2)、贵州从江株(CJ1、CJ2、CJ3、CJ4)、云南大理株(DL1)和新疆乌什株(XJ1)成虫节片,提取DNA,以13条随机引物进行PCR扩增,用随机扩增多态性DNA(RAPD)分析,并构建不同地理株系统发育树。 结果 13条引物共扩增RAPD片段331个(以相同bp数为依据)。单条引物扩增的RAPD片段数在3~28个之间,13条引物平均扩增RAPD片段在6.11~24.56个,平均14.15个;9个不同地理株牛带绦虫平均RAPD片段在9.85~16.62,平均14.08个。系统发育树显示:9个不同地理株牛带绦虫分为两支,DY1、DY2、DL1和TW1聚为一支,属于牛带绦虫亚洲亚种;CJ1、CJ2、CJ3、CJ4和XJ1聚为另一支,属牛带绦虫指名亚种。 结论 我国4省9株牛带绦虫分别属于牛带绦虫亚洲亚种和牛带绦虫指名亚种。RAPD分析可用于区分牛带绦虫亚洲亚种与牛带绦虫指名亚种的分类学参考。

关键词: 牛带绦虫, 牛带绦虫亚洲亚种, 随机扩增多态性DNA(RAPD)

Abstract: Objective To make molecular identification for 9 isolates of Taenia saginata from 4 provinces. Methods Genomic DNA was extracted from the segments of adult tapeworms collected from Taoyuan of Taiwan (TW1),Duyun of Guizhou (DY1, DY2), Congjiang of Guizhou (CJ1, CJ2, CJ3, CJ4), Dali of Yunnan (DL1) and Wushi of Xinjiang (XJ1) respectively. PCRs were carried out with 13 random primers. A phylogenetic tree of different geographical strains was constructed. Results 331 DNA fragments were amplified. The number of DNA fragments amplified by single primer was between 3 and 28. The average number of amplified DNA fragments by the 13 primers was 14.15. The average number of fragments from the 9 isolates of T.saginata was 14.08. Phylogenetic tree revealed that there were two branches in the tree, DY1, DY2, DL1 and TW1 occupied one branch, while CJ1, CJ2, CJ3, CJ4 and XJ1 occupied the other one. Conclusions By the RAPD analysis, the isolates DY1, DY2, DL1 and TW1 belong to Taenia saginata asiatica, and the isolates CJ1, CJ2, CJ3, CJ4 and XJ1 belong to T.saginata saginata.

Key words: Taenia saginata, Taenia saginata asiatica, Random amplified polymorphic DNA(RAPD)