›› 2010, Vol. 37 ›› Issue (11): 73-75.

• 生物技术 • 上一篇    下一篇

猬迭宫绦虫线粒体cox3基因的克隆及序列分析

伍慧兰   

  1. (湖南第一师范学院,长沙 410205)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-11-20 发布日期:2010-11-20

Cloning and Sequence Analysis of Mitochondrial Cytochrome c Oxidase Subunit 3 of Spirometra erinaceieuropaei Isolates from Hunan Province

WU Hui-lan   

  1. (Hunan First Normal University, Changsha 410205,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-11-20 Published:2010-11-20

摘要: 本研究旨在阐明猬迭宫绦虫湖南分离株线粒体细胞色素c氧化酶第Ⅲ亚基(cox3)基因部分序列(pcox3)的遗传变异情况。利用聚合酶链反应(PCR)扩增猬迭宫绦虫的pcox3,应用ClustalX 1.81程序对序列进行比对,同时利用DNAStar 5.0中的Megalign程序进行同源性分析,再用Phylip 3.67程序MP法绘制系统发育树,并与GenBank中已知猬迭宫绦虫相应基因序列进行比对分析。结果显示,所获得的pcox3序列长度一致,均为264 bp,湖南分离株与已知猬迭宫绦虫位于同一分支,来自湖南省的猬迭宫绦虫pcox3序列有微小差异。本研究结果为猬迭宫绦虫进一步的分类、鉴定和遗传变异研究奠定了基础

关键词: 猬迭宫绦虫; 线粒体DNA; cox3基因; 序列分析

Abstract: The objectives of the present study was to examine sequence variation in the mitochondrial cytochrome c oxidase subunit 3 (cox3) gene among Spirometra erinaceieuropaei isolates from Hunan province. The partial cox3 (pcox3) was amplified from each S. erinaceieuropaei sample by PCR, and pcox3 sequences were aligned using the ClustalX 1.81. MP tree was constructed using the software Phylip 3.67 version 4.0. Sequence homology analysis was performed using the Megalign program of the software DNAStar 5.0 by comparing with the corresponding sequence of S. erinaceieuropaei available in GenBank. The results showed that the lengths of pcox3 were 264 bp. The phylogenetic tree showed that the Hunan isolates and the S. erinaceieuropaei available in GenBank were clustered in the same clade. The pcox3 sequences of S. erinaceieuropaei isolates from Hunan province were slight different. The results provided a foundation for further studies of molecular identification and molecular genetics of S.erinaceieuropaei.

Key words: Spirometra erinaceieuropaei; mitochondrial DNA; cox3 gene; sequence analysis

中图分类号: