中国寄生虫学与寄生虫病杂志 ›› 2006, Vol. 24 ›› Issue (2): 9-121.

• 实验报道 • 上一篇    下一篇

哈氏并殖吸虫ITS2基因和CO1基因序列分析

钱宝珍1;H.Sugiyama2;J.Waikagul3;朱志航4   

  1. 1 浙江省医学科学院生物工程研究所, 杭州 310013; 2 国家感染病研究院寄生虫学研究所,日本; 3 Mahidol大学热带医学院泰国; 4 浙江省宁海县疾控中心, 宁海 315600
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-04-30 发布日期:2006-04-30

Sequence Analysis of ITS2 and CO1 Genes of Paragonimus harinasutai

QIAN Bao-zhen1;H.Sugiyama2;J.Waikagul3;ZHU Zhi-hang4   

  1. 1 Institute of Bio-engineering,Zhejiang Academy of Medical Sciences,Hangzhou 310013,China;2 Department of Parasitology,National Institute of Infectious Diseases,Japan;3 Department of Tropical Medicine,Mahidol University,Thailand;4 Ninghai CDC,Ninghai 315600,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-04-30 Published:2006-04-30

摘要: 目的 进一步确认浙江宁海哈氏并殖吸虫(Paragonimus harinasutai)分类地位及其遗传变异。 方法 从浙江华溪蟹中分离获得哈氏并殖吸虫囊蚴,单个囊蚴经PCR扩增,进行核糖体DNA第二间区(ITS2)基因和线粒体细胞色素C氧化酶亚单位(CO1)基因序列分析;ITS2-PCR扩增产物经BsaHI、StuI酶切。 结果 ITS2-PCR扩增产物经BsaHI和StuI酶切(PCR-RFLP),琼脂糖凝胶电泳分离图谱基本一致。浙江宁海哈氏并殖吸虫ITS2基因有366碱基对,与泰国种群(AF159609)核酸同源性为95.6%,CO1基因有390碱基对,与泰国种群(AF159600)核酸同源性为89.5%。 结论 本研究从分子生物学角度进一步确认浙江宁海哈氏并殖吸虫分类地位,但与泰国种群(Nakorn-nayok省)相比较,存在较大变异。

关键词: 哈氏并殖吸虫, 分类, 序列分析

Abstract: Objective To identify Paragonimus harinasutai from Ninghai, Zhejiang Province, China. Methods Meta-cercariae were collected from the crabs Sinopotamon chekiangenes in Xixi village of Ninghai County for ITS2 sequence analysis, CO1 sequence analysis and endonuclease BsaHI and StuI analysis by PCR-RFLP. Results The fingerprintings of PCR-RFLP were virtually same to the isolate from Thailand (Nakorn-nayok). The ITS2 sequence with 366 bp and CO1 sequence with 390 bp of the metacercariae collected from Ninghai revealed a nucleotide identity 95.6% and 89.5% respectively to the Thai isolate. Conclusion The study confirmed that Paragonimus harinasutai is present in Ninghai, China, with certain variation on molecular biology in comparison to the Thai isolate.

Key words: Paragonimus harinasutai, Classification, Sequence analysis