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Sylvatic population of Triatoma infestans from the Bolivian Chaco: from field collection to characterization

Author(s): Noireau François | Bastrenta Brigitte | Catalá Silvia | Dujardin Jean-Pierre | Panzera Francisco | Torres Magdalena | Perez Ruben | Galvão Cleber | Jurberg José

Journal: Memórias do Instituto Oswaldo Cruz
ISSN 0074-0276

Volume: 95;
Issue: suppl.1;
Start page: 119;
Date: 2000;
Original page

Keywords: Triatoma infestans | sylvatic focus | characterization of population

A sylvatic Triatoma infestans DM (dark morph) population detected in the Bolivian Chaco was characterized and compared with various domestic ones. The degree of differentiation of DM was clearly within the T. infestans intra-specific level. Nevertheless marked chromatic and morphometric differences as well as differences in antennal pattern, chromosome banding and randomly amplified polymorphic DNA support the hypothesis of a distinct population. Continuous exchange of insects between wild and domestic habitats seems unlikely in the Chaco.
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