中国寄生虫学与寄生虫病杂志 ›› 2004, Vol. 22 ›› Issue (5): 6-279.

• 论著 • 上一篇    下一篇

赫坎按蚊种群近缘种核糖体基因内转录第二间隔区序列分析

高琪1,周华云1,李菊林1,李凤华2,Choe Tong Gyu3,Yom Sung Chan3,朱国鼎1,曹俊1
  

  1. 1 江苏省寄生虫病防治研究所,无锡 214064 2 辽宁省疾病预防控制中心,沈阳 110005 3 朝鲜民主主义共和国国家流行病和公共卫生研究所,平壤
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-10-30 发布日期:2004-10-30

Analysis of the Sequences of the Ribosomal DNA ITS_2 Region for Differenciating Anopheline Mosquitoes within Hyrcanus Group

GAO Qi,ZHOU Hua yun,LI Ju lin,LI Feng hua,Choe Tong Gyu,Yom Sung Chan,ZHU Guo ding,CAO Jun
  

  1. Jiangsu Institute of Parasitic Diseases,Wuxi 214064,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-10-30 Published:2004-10-30

摘要:   目的 分析赫坎按蚊种群内4个近缘种核糖体基因内转录第二间隔区(rDNAITS2)特征。 方法 采用特异性ITS2引物对中华按蚊和嗜人按蚊江苏实验株、辽宁省沈阳市和朝鲜开城现场捕获的嗜人按蚊、八代按蚊和雷氏按蚊rDNAITS2进行PCR扩增、基因测序和限制性内切酶酶切位点图谱分析。 结果与结论 赫坎按蚊种群近缘种中华按蚊、嗜人按蚊、八代按蚊和雷氏按蚊rDNAITS2分别为472、452、456和456bp,各基因序列存在明显差异并存在不同的限制性内切酶酶切位点

关键词: 按蚊属, 核糖体DNA, 内转录第二间隔区, 聚合酶链反应

Abstract:  Objective To analyze the genetic characteristics of ribosomal DNA ITS2 region for differenciating anopheline mosquitoes within Hyrcanus group. Methods The ribosomal DNA ITS2 region of both laboratory line and filed collected An. anthropophagus and An. sinensis as well as the field collected An. yatsushiroensis and An. lester i were amplified and sequenced. The sequencing data were then analyzed for the restriction mapping using Omega Sequencing analysis program. Results and Conclusion The length of the sequences of An. sinensis, An. anthropophagus, An. yatsushiroensis and An. lesteri are 472, 452, 456 and 456 bp respectively. The restriction mapping showed that there were different restriction digesting sites among the ribosomal DNA ITS2 region sequences from An. sinensis, An. anthropophagus, An. yatsushiroensis and An. lesteri . On the basis of the sequence differences among the anopheline species within Hyrcanus group, it is possible to develop new technique for genetic identification of anopheline mosquitoes.

Key words: Anopheles, Ribosomal DNA, ITS2, PCR