Characterization of Rhodnius neglectus from Two Regions of Brazil Using Isoenzymes, Genitalia Morphology and Morphometry

Among the triatomines considered as secondary in the epidemiology of Chagas disease, Rhodnius neglectus is frequently captured in artificial ecotopes, especially peridomiciliary ones, rarely producing colonies indoors. Nevertheless, the presence of breeding colonies in houses was unquestionably demonstrated in some areas of the State of Goiás, Brazil. Previous isoenzyme comparisons of this species with morphologically close triatomines, such as R. prolixus, R. robustus or R. nasutus, did not produce definitive conclusions because of doubt about the geographical origin of the R. neglectus. We present here, for the first time, the isoenzyme profile of topotypes of R. neglectus. In addition, wild caught specimens from the type locality, Uberaba (Minas Gerais, Brazil), were compared to wild caught specimens from Jaraguá (Goiás, Brazil), where R. neglectus is more frequently reported invading houses. We used isoenzyme, morphology and morphometry analysis. Neither morphological nor enzymatic differences were found between areas, but metric, size-related divergence was evidenced between them.

Bibliographic Details

Main Authors:	Soares,Rodrigo Pedro Pinto, Barbosa,Silvia Ermelinda, Dujardin,Jean-Pierre, Schofield,Christopher John, Siqueira,Ariovaldo Moura, Diotaiuti,Liléia
Format:	Digital revista
Language:	English
Published:	Instituto Oswaldo Cruz, Ministério da Saúde 1999
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761999000200006
Tags:	Add Tag No Tags, Be the first to tag this record!