Cui Ai-li, Chang Zheng-shan, Chen Ming-gang, Blair David, Zhang Yong-nian, Chen Shao-hong, Feng Zheng
Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 2003;21(2):71-5.
To study differences among Paragonimus skrjabini populations from five provinces (Guangdong, Fujian, Yunnan, Hubei, Sichuan) and Paragonimus szechuanensis and to analyze the taxonomic status of P. heterotremus and P. veocularis in the Genus Paragonimus Braun, 1899.
DNA sequences were obtained from the ITS2 and CO1 genes and phylogenetic trees were built.
Difference of the DNA sequences among P. skrjabini populations from five provinces were minor. P. veocularis and P. skrjabini were similar in DNA sequences. There were also some resemblances between P. miyazakii from Japan and the Fujian isolates of P. skrjabin. In addition, P. heterotremus was found to be closer to P. skrjabini and quite a distance from P. westermani in the phylogenetic tree.
All studied populations can be regarded as different strains of P. skrjabini; P. szechuanensis is not a separate species, but possibly a geographical strain of P. skrjabini. Also found was that P. veocularis and P. miyazakii may be the synonyms of P. skrjabini. As a separate species, P. heterotremus was found to be closer to P. skrjabini and quite a distance from P. westermani in the genetic relationship.
研究来自五个省份（广东、福建、云南、湖北、四川）的斯氏狸殖吸虫种群与四川并殖吸虫之间的差异，并分析在1899年布氏并殖吸虫属中异形并殖吸虫和眼囊并殖吸虫（卫氏并殖吸虫）的分类地位。
获取ITS2和CO1基因的DNA序列并构建系统发育树。
五个省份的斯氏狸殖吸虫种群的DNA序列差异较小。眼囊并殖吸虫和斯氏狸殖吸虫的DNA序列相似。日本宫崎并殖吸虫与福建斯氏狸殖吸虫分离株之间也存在一些相似之处。此外，在系统发育树中发现异形并殖吸虫与斯氏狸殖吸虫更接近，与卫氏并殖吸虫有相当距离。
所有研究的种群可视为斯氏狸殖吸虫的不同菌株；四川并殖吸虫不是一个独立的物种，可能是斯氏狸殖吸虫的一个地理菌株。还发现眼囊并殖吸虫和宫崎并殖吸虫可能是斯氏狸殖吸虫的同义词。作为一个独立的物种，异形并殖吸虫在遗传关系上与斯氏狸殖吸虫更接近，与卫氏并殖吸虫有相当距离。
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