Retrotransposon-microsatellite amplified polymorphism, an electrophoretic approach for studying genetic variability among Schistosoma japonicum geographical isolates
文献类型: 外文期刊
第一作者: Li, Juan
作者: Li, Juan;Zhao, Guang-Hui;Zhou, Dong-Hui;Zhu, Xing-Quan;Li, Juan;Li, Juan;Li, Xiao-Yan;Zhao, Guang-Hui;Sugiyama, Hiromu;Zou, Feng-Cai;Zhu, Xing-Quan;Li, Hai-Long;Ai, Lin
作者机构:
关键词: China;Genetic diversity;Retrotransposon-microsatellite amplified polymorphism (REMAP);Retrotransposons;Schistosoma japonicum
期刊名称:ELECTROPHORESIS ( 影响因子:3.535; 五年影响因子:2.731 )
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收录情况: SCI
摘要: In the present study, retrotransposon-microsatellite amplified polymorphism (REMAP) was used to examine genetic variability among Schistosoma japonicum isolates from different endemic provinces in mainland China, using S. japonicum from Japan and the Philippines for comparison. Of the 50 primer combinations screened, eight produced highly reproducible REMAP fragments. Using these primers, 190 distinct DNA fragments were generated in total, of which 147 (77.37%) were polymorphic, indicating considerable genetic variation among the 43 S. japonicum isolates examined. The percentage of polymorphic bands (PPB) among S. japonicum isolates from mainland China, Japan, and the Philippines was 77.37%; PPB values of 18.42% and 53.68% were found among isolates from southwestern (SW) China and the lower Yangtze/Zhejiang province in eastern (E) China, respectively. Based on REMAP profiles, unweighted pair-group method with arithmetic averages (UPGMA) dendrogram analysis revealed that all of the S. japonicum samples grouped into three distinct clusters: parasites from mainland China, Japan, and the Philippines were clustered in each individual clade. Within the mainland China cluster, SW China isolates (from Sichuan and Yunnan provinces) grouped together, whereas worms from E China (Zhejiang, Anhui, Jiangxi, Jiangsu, Hunan, and Hubei provinces) grouped together. These results demonstrated that the REMAP marker system provides a reliable electrophoretic technique for studying genetic diversity and population structures of S. japonicum isolates from mainland China, and could be applied to other pathogens of human and animal health significance. ? 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
分类号: O646
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