DNA sequences of Paragonimus skrjabini populations from five provinces in China  

作　　者：陈名刚 常正山 崔爱利 David BLAIR 张永年 陈韶红 冯正 

机构地区：[1]Department of Schistosomiasis, National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China [2]National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention. Shanghai 200025 . China [3]School of Tropical Biology, James Cook University, Townsville, Queensland 4811, Australia [4]National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025 , China

出　　处：《Chinese Medical Journal》2004年第2期219-224,共6页中华医学杂志（英文版）

基　　金：This study was supported by a NIH/NIAID grant ( No. P50 A139461), USA.

摘　　要：Background To study differences among Paragonimus skrjabini (P. skrjabini) populations from five provinces in China ( Guangdong, Fujian, Yunnan, Hubei, and Sichuan) and Paragonimus szechuanensis.Methods DMA sequences were obtained from the ITS2 and CO1 genes and phylogenetic trees were constructed from the results. Sequences were also obtained from several other species of Paragonimus for comparative purposes.Results Although differences existed in the DMA sequence among P. skrjabini populations from five provinces, the differences were very small. There was also some resemblance between P. miyazakii from Japan and Fujian strains of P. skrjabini.Conclusion All studied populations can be regarded as different strains of P. skrjabini; P. szechuanensis is not a separate species but may be a geographical strain of P. skrjabini. We also found that P. miyazakii may be synonymous with P. skrjabini.Background To study differences among Paragonimus skrjabini (P. skrjabini) populations from five provinces in China ( Guangdong, Fujian, Yunnan, Hubei, and Sichuan) and Paragonimus szechuanensis.Methods DMA sequences were obtained from the ITS2 and CO1 genes and phylogenetic trees were constructed from the results. Sequences were also obtained from several other species of Paragonimus for comparative purposes.Results Although differences existed in the DMA sequence among P. skrjabini populations from five provinces, the differences were very small. There was also some resemblance between P. miyazakii from Japan and Fujian strains of P. skrjabini.Conclusion All studied populations can be regarded as different strains of P. skrjabini; P. szechuanensis is not a separate species but may be a geographical strain of P. skrjabini. We also found that P. miyazakii may be synonymous with P. skrjabini.

关 键 词：Paragonimus skrjabini Paragonimus szechuanensis geographical strain Taxonomy DNA sequences 

分 类 号：Q987[生物学—遗传学]