Translator Disclaimer
1 December 2010 Sylvatic and Peridomestic Populations of Triatoma pseudomaculata are not Significantly Structured by Habitat, as Revealed by Two Genetic Markers
Author Affiliations +
Abstract

Chagas disease remains a public health concern in Brazil and other Latin American countries, mainly due to the potential domiciliation of native triatomine species. We analyzed the genetic variability of Triatoma pseudomaculata in sylvatic and peridomestic ecotopes throughout three localities in the northeastern state of Bahia, Brazil. We studied polymorphisms generated by random amplified polymorphic DNA (RAPD) and isoenzyme electrophoresis analyses. Based on RAPD analysis, each specimen was assigned to one of three genetic clusters. Although all sylvatic specimens from one locality were grouped into the same cluster, sylvatic and peridomestic specimens from the other two localities were broadly distributed between the remaining two clusters, suggesting that geographic population structuring was not occurring. Furthermore, isoenzyme analysis suggested that distinct populations were in Hardy-Weinberg equilibrium. Low statistical values for Wright's Fst index also supported the absence of population structuring and suggested the occurrence of panmixia. We conclude that genetic flow occurs between sylvatic and peridomestic T. pseudomaculata populations, probably as a consequence of passive and active dispersion of the insects, associated with deforestation and anthropic transformations.

Filipe Anibal Carvalho-Costa, Silvia M Dos Santos, Marize Quinhones Pires, Catarina Macedo Lopes, François Noireau, and Raquel S. Pacheco "Sylvatic and Peridomestic Populations of Triatoma pseudomaculata are not Significantly Structured by Habitat, as Revealed by Two Genetic Markers," Journal of Vector Ecology 35(2), 295-300, (1 December 2010). https://doi.org/10.1111/j.1948-7134.2010.00085.x
Received: 18 December 2009; Accepted: 1 May 2010; Published: 1 December 2010
JOURNAL ARTICLE
6 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top