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Genetic exchanges as a possible source of genomic diversity in sylvatic populations of Trypanosoma Cruzi

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1996
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Genetic exchanges as a possible source of genomic diversity in sylvatic populations of Trypanosoma Cruzi.pdf (3.011xmlui.dri2xhtml.METS-1.0.size-megabytes)
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http://patua.iec.gov.br/handle/iec/671
xmlui.dri2xhtml.METS-1.0.item-author
Carrasco, Hernan J
Frame, Iain A
Valente, Sebastião Aldo da Silva
Miles, Michael. A
xmlui.dri2xhtml.METS-1.0.item-abstract
Thirty six stocks of Trypanosoma cruzi isolated from sylvatic mammals (32 Didelphis marsupialis and one Philander opossum) and triatomine bugs (Rhodnius robustus and one unidentified bug) in the Amazonian forest of Carajas, Brazil were characterized by isoenzyme and random amplified polymorphic DNA (RAPD) analysis as belonging to principal zymodeme 1 (Zl). Two different homozygous phenotypes and the corresponding heterozygous phenotype were found for phosphoglucomutase with an observed frequency almost identical with that predicted by the theoretical Hardy- Weinberg distribution. Parental and hybrid profiles were algo suggested by RAPD analysis, which allowed exclusion of mixed parental strains from the hybrids: isoenzyme and RAPD profiles of biological clones were algo indistinguishable from those of uncloned stocks. Trypanosoma cruzi stocks from widely separated geographic origins in Central and South America gave similar RAPD profiles that allowed them to be recognized as being Zl. These results indicate that genetic exchange could contribute to the generation of genetic diversity during the sylvatic cycle of T. cruzi, and this may have epidemiologic and taxonomic implications.
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CARRASCO, Hernan J. et al. Genetic exchanges as a possible source of genomic diversity in sylvatic populations of Trypanosoma Cruzi. American Journal of Tropical Medicine and Hygiene, v. 54, n. 4, p. 418-424, 1996.
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Trypanosoma cruzi
Trypanosoma cruzi / classificação
Região Amazônica (BR)
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Acesso Aberto
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  • SAPAR - Artigos Científicos

Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br