中国寄生虫学与寄生虫病杂志 ›› 2004, Vol. 22 ›› Issue (5): 5-276.

• 论著 • 上一篇    下一篇

子一代实验室钉螺细胞色素c氧化酶I、细胞色素b基因序列分析

张仪1,Yamasaki Hiroshi2,刘和香1,冯婷1,冯正1
  

  1. 1 中国疾病预防控制中心寄生虫病预防控制所,世界卫生组织疟疾、血吸虫病和丝虫病合作中心,卫生部寄生虫病重点实验室;上海200025 2 日本旭川医学院寄生虫系;寄生虫分子和细胞系,现在日本旭川医学院寄生虫系。
  • 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 Cytochrome c Oxidase I and Cytochrome b Genes of F1 in Laboratory Line Oncomelania hupensis hupensis

ZHANG Yi,Yamasaki Hiroshi,LIU He xiang,FENG Ting,FENG Zheng
  

  1. Institute of Parasitic Diseases,Chinese Center for Disease Control and Prevention,Shanghai 200025,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-10-30 Published:2004-10-30

摘要:   目的 了解钉螺子一代(F1)实验室钉螺群(湖北钉螺湖北亚种)内的遗传变异。 方法 实验室饲养的F1钉螺,单个抽提基因组DNA,PCR扩增细胞色素c氧化酶I(COI)、细胞色素b(Cytb)基因并测序,用GENETYX MACver.9软件进行同源排序、DNA和氨基酸序列分析,同时与GenBank相同基因序列比较。 结果 实验室螺群内,COI基因差异为12.2%,94个氨基酸发生变化。Cytb基因差异6.4%,有25个氨基酸发生变化。湖北亚种与滇川亚种COI基因序列差异率为 13 .5 %。与GenBank中湖北钉螺滇川亚种Cytb基因序列比较 ,差异为 13 .6% ,在 2 0 3个氨基酸中 6个氨基酸发生变化。 结论 F1实验室钉螺群内核苷酸与氨基酸序列均发生变异。

关键词: 螺, 子代, 基因, 遗传变异

Abstract:  Objective To analyze the diversity of F1 in laboratory line Oncomelania hupensis hupensis . Methods Genomic DNA was isolated, and cytochrome c oxidase I (COI) and cytochrome b (Cytb) genes were amplified by polymerase chain reaction (PCR). The nucleotide sequences of the PCR products were analyzed by GENETYX MAC software package (ver.9). Results Pairwise divergences among six F1 individuals were found in 12.2% nucleotides in COI gene fragments. 13.5% of genetic divergences between O.h.hupensis and O.h.robertsoni were identified. 94 amino acids were observed in difference. In Cyt b gene fragments, 6.4% of divergence was observed among four F1 samples. 25 amino acids were observed differently. The divergence of Cyt b genes from O.h.robertsoni and O.h.hupensis were 13.6%, included 6 amino acids. Conclusion Diversities were found in both COI and Cyt b gene sequences of F1 in laboratory line O.h.hupensis.

Key words: Snails, F1 filial generation, Genes, Genetic variation