Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/44561
Title: Patterns of antenal sensilla of Panstrongylus megistus from three Brazilian states
Authors: Villela, M. M.
Catalá, S.
Juberg, José
Silva, I. G.
Dias, J. C. P.
Affilliation: Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil.
Centro Regional de Investigación Científica y Transferencia Tecnológica de La Rioja. Anillaco, Argentina.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Universidade Federal de Goiás. Departamento de Parasitologia. Goiânia, GO, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil.
Abstract: The objective of the present study was to analyze and describe the phenotype of the antennal sensilla of Panstrongylus megistus, one of the epidemiologically most important species of triatomines in Brazil. Specimens from the Brazilian states of Goiás (GO), Minas Gerais (MG), and Rio Grande do Sul (RS) were compared, based on studies of four types of sensilla on three antennal segments: thick-walled trichoid (TK), thin-walled trichoid (TH), bristles (BR), and basiconica (BA). Discriminant analysis allowed the separation of the RS specimens from those of GO and MG. Multivariate discriminant analysis demonstrated that the sensilla of males differed from those of females, the variables with greatest weight being the BA of all three segments and the TK of flagellum 1. The basiconica sensilla were significantly more abundant in females, on all three segments. Antennal sensilla patterns also demonstrated significant differences among P. megistus specimens.
Keywords: Panstrongylus megistus
Antennal sensilla
Chagas Disease
Brazil
keywords: Panstrongylus megistus
Sensilas
Doença de Chagas
Brasil
DeCS: Sensilas
Issue Date: 2005
Publisher: Fundação Oswaldo Cruz. Instituto Oswaldo Cruz.
Citation: VILLELA, M. M. et al. Patterns of antenal sensilla of Panstrongylus megistus from three Brazilian states. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 100, n. 7, p. 699-702, Nov. 2005.
DOI: 10.1590/S0074-02762005000700002
ISSN: 0074-0276
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos
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