Abstract:
:We characterized sequences from genes encoding cathepsin L-like (CatL-like) cysteine proteases from African and South American isolates of Trypanosoma vivax and T. vivax-like organisms, and evaluated their suitability as genetic markers for population structure analysis and diagnosis. Phylogenetic analysis of sequences corresponding to CatL-like catalytic domains revealed substantial polymorphism, and clades of sequences (TviCatL1-9) were separated by large genetic distances. TviCatL1-4 sequences were from cattle isolates from West Africa (Nigeria and Burkina Faso) and South America (Brazil and Venezuela), which belonged to the same T. vivax genotype. T. vivax-like genotypes from East Africa showed divergent sequences, including TviCatL5-7 for isolates from Mozambique and TviCatL8-9 for an isolate from Kenya. Phylogenetic analysis of CatL-like gene data supported the relationships among trypanosome species reflected in the phylogenies based on the analysis of small subunit (SSU) of ribosomal RNA gene sequence data. The discovery of different CatL-like sequences for each genotype, defined previously by ribosomal DNA data, indicate that these sequences provide useful targets for epidemiological and population genetic studies. Regions in CatL-like sequences shared by all T. vivax genotypes but not by other trypanosomes allowed the establishment of a specific and sensitive diagnostic PCR for epidemiological studies in South America and Africa.
journal_name
Mol Cell Probesjournal_title
Molecular and cellular probesauthors
Cortez AP,Rodrigues AC,Garcia HA,Neves L,Batista JS,Bengaly Z,Paiva F,Teixeira MMdoi
10.1016/j.mcp.2008.11.003subject
Has Abstractpub_date
2009-02-01 00:00:00pages
44-51issue
1eissn
0890-8508issn
1096-1194pii
S0890-8508(08)00073-Xjournal_volume
23pub_type
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2004.11.008
更新日期:2005-06-01 00:00:00
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.2002.0408
更新日期:2002-06-01 00:00:00
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journal_title:Molecular and cellular probes
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doi:10.1016/j.mcp.2004.06.006
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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abstract::Tomato black ring virus (TBRV) infects a wide range of economically important plant species worldwide. In the present study we developed a locked nucleic acid (LNA) real-time RT-PCR assay for accurate detection of genetically diverse TBRV isolates collected from different hosts. The assay based on the LNA probe has a ...
journal_title:Molecular and cellular probes
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abstract::PCR detection and quantification of vaginal lactobacilli remains problematic because of the high level of genetic heterogeneity and taxonomic complexity within the genus Lactobacillus. The aim of the present study was to identify conserved sequences among the genomes of major species of vaginal lactobacilli that could...
journal_title:Molecular and cellular probes
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doi:10.1016/j.mcp.2016.11.006
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
pub_type: 杂志文章,评审
doi:10.1016/j.mcp.2016.01.003
更新日期:2016-02-01 00:00:00