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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/22593


Title: Ecogenetics of Triatoma sordida and Triatoma guasayana (Hemiptera: Reduviidae) in the Bolivian Chaco
Authors: Noireau, François
Gutierrez, Teresa
Flores, Rosmary
Brenière, Frédérique
Bosseno, Marie-France
Wisnivesky-Colli, Cristina
Keywords: Triatoma sordida - Triatoma guasayana - distribution - population genetics - multilocus enzyme electrophoresis - Bolivia
Issue Date: 31-Dec-1999
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 94 Num 4
Abstract: Triatoma guasayana and two putative cryptic species pertaining to T. sordida complex (named groups 1 and 2) occur in sympatry in the Bolivian Chaco. Using multilocus enzyme electrophoresis and subsequent genetic analysis, our work assesses their population distribution and dispersal capacity in domestic, peridomestic, and silvatic environments. Our collections by light trap in the silvatic environment indicated a predominance of T. guasayana and T. sordida group 2 and a lesser abundance of T. sordida group 1 ({ or =10% of the total of captures). Their similar distribution in two silvatic areas 80 km apart supports the hypothesis of their homogeneous dispersal through the Bolivian Chaco. The distribution of T. guasayana and T. sordida groups 1 and 2 was similar between silvatic environment and peridomestic ecotopes where 25% of positive places was occupied by two or three species. Bromeliads were confirmed as favorable shelter for T. guasayana but were free of T. sordida. T. sordida group 1 and to a lesser extent T. guasayana would be more invasive vectors for houses than T. sordida group 2. The spatial partition in the three species sampled in two distant sites suggested a reduced dispersive capacity.
URI: http://hdl.handle.net/1807/22593
Other Identifiers: http://www.bioline.org.br/abstract?id=oc99083
Rights: Copyright 1999 Fundacao Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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