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Sequence-related amplified polymorphism, an effective molecular approach for studying genetic variation in Fasciola spp. of human and animal health significance

文献类型： 外文期刊

作者： Li, Qiao-Yan 1 ; Dong, Shi-Juan 2 ; Zhang, Wei-Yu 3 ; Lin, Rui-Qing 1 ; Wang, Chun-Ren 4 ; Qian, De-Xing 5 ; Lun, Zhao 1 ;

作者机构： 1.S China Agr Univ, Coll Vet Med, Parasitol Lab, Guangzhou 510642, Guangdong, Peoples R China

2.Shanghai Acad Agr Sci, Anim Husb & Vet Res Inst, Shanghai, Peoples R China

3.Guangxi Univ, Coll Anim Sci & Technol, Nanning, Guangxi Zhuang, Peoples R China

4.Heilongjiang August First Land Reclamat Univ, Coll Anim Sci & Technol, Heilongjiang, Peoples R China

5.Guizhou Prov Ctr Anim Dis Control & Prevent, Guiyang, Guizhou Prov, Peoples R China

关键词： DNA polymorphism;Fasciola gigantica;Fasciola hepatica;Sequence-related amplified polymorphism;The "intermediate" Fasciola

期刊名称：ELECTROPHORESIS （ 影响因子：3.535； 五年影响因子：2.731 ）

ISSN： 0173-0835

年卷期： 2009 年 30 卷 2 期

页码：

收录情况： SCI

摘要： In the present study, a recently described Molecular approach, namely sequence-related amplified polymorphism (SRAP), which preferentially amplifies ORFs, was evaluated for the studies of genetic variation among Fasciola hepatica, Fasciola gigantica and the "intermediate" Fasciola from different host species and geographical locations in mainland China. Five SRAP primer combinations were used to amplify 120 Fasciola samples after ten SRAP primer combinations were evaluated. The number of fragments amplified from Fasciola samples using each primer combination ranged from 12 to 20, with an average of 15 polymorphic bands per primer pair. Fifty-nine main polymorphic bands were observed, ranging in size from 100 to 2000 bp, and S RAP bands specific to F. hepatica or F. gigantica were observed. SRAP fragments common to F. hepatica and the "intermediate" Fasciola, or common to F. gigantica and the "intermediate" Fasciola were identified, excised and confirmed by PCR amplification of genomic DNA using primers designed based on sequences of these SRAP fragments. Based on SRAP profiles, unweighted pair-group method with arithmetic averages clustering algorithm categorized all of the examined representative Fasciola samples into three groups, representing the F. hepatica, the "intermediate" Fasciola, or the F. gigantica. These results demonstrated the usefulness of the SRAP technique for revealing genetic variability between F. hepatica, F. gigantica and the "intermediate" Fasciola, and also provided genomic evidence for the existence of the "intermediate" Fasciola between F. hepatica and F. gigantica. This technique provides an alternative and a useful tool for the genetic characterization and studies of genetic variability in parasites.

  • 相关文献

[1]Sequence analysis of the first internal transcribed spacer of rDNA supports the existence of the intermediate Fasciola between F-hepatica and F-gigantica in mainland China. Lin, R. Q.,Dong, S. J.,Nie, K.,Wang, C. R.,Song, H. Q.,Li, A. X.,Huang, W. Y.,Zhu, X. Q.. 2007

[2]Specific PCR-based assays for the identification of Fasciola species: their development, evaluation and potential usefulness in prevalence surveys. Ai, L.,Mahmmod, Y. S.,Lin, R. Q.,Yuan, Z. G.,Zhu, X. Q.,Dong, S. J.,Zhang, W. Y.,Shi, Y. L.,Huang, W. Y.,Elsheikha, H. M.,Mahmmod, Y. S.,Zhu, X. Q.. 2010

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