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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 101, No. 6, 2006, pp. 613-615
Bioline Code: oc06103
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 101, No. 6, 2006, pp. 613-615

 en Schizodeme analysis of Trypanosoma cruzi check for this species in other resources Colombian strain clones isolated from the acute phase of murine infection
Edson LP Camandaroba; Eliana AG Reis; Mitermayer G Reis & Sonia G Andrade


Colombian strain of Trypanosoma cruzi check for this species in other resources , biodeme Type III (T. cruzi I), has been cloned by micromanipulation at two phases of the acute infection: early (10 days ) and advanced (30 days). Twelve clones were obtained therefrom. Characterization by their biological and biochemical behavior showed an identity among the several clones and their parental strain, albeit with different degrees of virulence. Molecular characterization of the kinetoplast DNA (kDNA) after amplification by polymerase chain reaction revealed identical profiles of the bands from the kDNA minicircle by the analysis of restriction fragment lenght polymorphism for the isolated clones, their parental strain, and to the clones isolated at two different phases of the infection. Results suggest the predominance of a "principal clone", in the composition of the Colombian strain, responsible for the biological and biochemical behavior. However, no relationship was detected between the molecular profile of kDNA and the degree of virulence presented by the several clones.

Trypanosoma cruzi - Colombian strain clones - schizodeme

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