Triatoma rubrovaria has become the most frequently captured triatomine species since the control of T. infestans in the State of Rio Grande do Sul (RS), Brazil. In order to evaluate the genetic variability of this species, field collections were performed in four municipalities where it has been reported and distant from 75 to 322 km. Specimens were analyzed by color pattern and isoenzymes. Nine enzymatic loci were interpreted from nine enzymatic systems. The Santiago population was isolated from the others with chromatic monomorphism and diagnostic alleles at Idh and Pgm loci. The study shows the existence of, at least, two distinct populations of T. rubrovaria in RS with different phenotypic and genetic pattern.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1590/s0074-02762002000600013 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Triatoma rubrovaria (Hemiptera, Reduviidae, Triatominae) in the Pampa biome, Brazil: a retrospective study of its occurrence and abundance.
Rev Inst Med Trop Sao Paulo
June 2023
Universidade Federal de Pelotas, Programa de Pós-Graduação em Microbiologia e Parasitologia, Pelotas, Rio Grande do Sul, Brazil.
Triatoma rubrovaria has been captured in some areas of Rio Grande do Sul State (RS), Brazil, as this species can be found in the Pampa biome. Its distribution across this biome should be described in detail to verify the potential of this vector to transmit Trypanosoma cruzi. This study aimed to investigate the occurrence of T.
View Article and Find Full Text PDFIntegrative taxonomy and phylogenetic systematics of the Triatoma rubrovaria subcomplex (Hemiptera, Triatominae).
Acta Trop
January 2023
São Paulo State University (Unesp), School of Pharmaceutical Sciences, Araraquara, SP, Brazil. Electronic address:
Article Synopsis
- The Triatoma rubrovaria subcomplex includes several species that can transmit Trypanosoma cruzi, which causes Chagas disease.
- The study analyzed the morphology, morphometric details, and genetic data of five species to understand their taxonomy and evolutionary relationships.
- Findings revealed distinct morphological traits among the species, confirmed their monophyletic grouping, and supported the classification of these as important vectors in Southern Brazil.
Current situation of Chagas disease vectors (Hemiptera, Reduviidae) in Southern Rio Grande do Sul State, Brazil.
Rev Inst Med Trop Sao Paulo
June 2021
Universidade Federal de Pelotas, Instituto de Biologia, Programa de Pós-Graduação em Parasitologia, Pelotas, Rio Grande do Sul, Brazil.
Chagas disease (CD) has been considered endemic in the South of Rio Grande do Sul (RS) State, Brazil. This study aimed at evaluating the occurrence of Trypanosoma cruzi vectors based on the main species captured in Southern Rio Grande do Sul State from 2008 to 2019. The study area comprised counties that belong to the 3rd Regional Health Coordination (RHC) and to the 7th RHC, whose headquarters are in Pelotas and Bage, respectively.
View Article and Find Full Text PDFAnalysis of Chagas disease vectors occurrence data: the Argentinean triatomine species database.
Biodivers Data J
November 2020
Centro de Estudios Parasitológicos y de Vectores (CEPAVE CONICET-CCT La Plata-UNLP), La Plata, Argentina Centro de Estudios Parasitológicos y de Vectores (CEPAVE CONICET-CCT La Plata-UNLP) La Plata Argentina.
Article Synopsis
- Chagas disease is transmitted by triatomines, with 17 species found in Argentina, but prior comprehensive data on them has been lacking for nearly 20 years.
- A new database has been created containing over 15,900 records of these species, analyzing both historical and recent occurrences, with a significant focus on the last two decades.
- The findings indicate a contraction in the distribution of most species, particularly to the dry and humid Chaco ecoregions, highlighting the need for updated surveillance and health policy considerations.
Vector competence and feeding-excretion behavior of Triatoma rubrovaria (Blanchard, 1843) (Hemiptera: Reduviidae) infected with Trypanosoma cruzi TcVI.
PLoS Negl Trop Dis
September 2020
Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz/FIOCRUZ, Rio de Janeiro, Brazil.
Background: Several studies addressed changes on the insect vector behavior due to parasite infection, but little is known for triatomine bugs, vectors of Trypanosoma cruzi, the etiological agent of Chagas disease. We assessed infection rates and metacyclogenesis of T. cruzi (TcVI) in fifth-instar nymphs of Triatoma rubrovaria comparing with the primary vector Triatoma infestans.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!