Cytotaxonomy and chromosomal evolution of complex prolixus (Hemiptera, Triatominae)

• Grant number: 15/11372-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2015
• End date: July 31, 2016
• Field of knowledge: Biological Sciences - Zoology - Morphology of Recent Groups
• Principal Investigator: Maria Tercília Vilela de Azeredo Oliveira
• Grantee: Amanda Ravazi
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil

Abstract

The triatomines are hematophagous insects of great epidemiological importance, since all species are potential insect vector of the parasite Trypanosoma cruzi, etiologic agent of Chagas disease. Currently, there are 150 known species, grouped into 18 genera and six tribes. The Rhodniini tribe consists of 22 species, being 19 of the Rhodnius genus and three Psammolestes genus. The species of Rhodnius genus are difficult to diagnose, since, morphologically are very similar. Thus, these insects were grouped into specific complexes. The prolixus complex is a monophyletic group consisting currently six species, out more, R. prolixus, R. domesticus, R. robustus, R. neglectus, R. nasutus and R. montenegrensis. The last species described and grouped in the complex was R. montenegrensis. Recently, it was suggested that R. montenegrensis is only a lineage of R. robustus. Therefore, this study aims to analyze cytogenetically the prolixus complex, using classical techniques (lacto-acetic Orcein and C banding) and molecular (CMA3/DAPI), with emphasis on cytotaxonomy and chromosomal evolution of vectors group.

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

A. RAVAZI; K. C. C. ALEVI; J. OLIVEIRA; J. A. ROSA; M. T. V. AZEREDO-OLIVEIRA. Cytogenetic analysis in different populations of Rhodnius prolixus and R. nasutus from different countries of South America. Brazilian Journal of Biology, v. 78, n. 1, p. 183-185, 2017-05-25. (15/11372-1, 13/19764-0)

RAVAZI, AMANDA; OLAIA, NICOLY; DE OLIVEIRA, JADER; SOUZA, EDER DOS SANTOS; DA ROSA, JOAO ARISTEU; VILELA DE AZEREDO-OLIVEIRA, MARIA TERCILIA; CHABOLI ALEVI, KAIO CESAR. Revisiting the Chromosomal Diversification of the Genus Rhodnius (St al, 1859) (Hemiptera, Triatominae). American Journal of Tropical Medicine and Hygiene, v. 104, n. 2, p. 656-658, FEB 2021. (18/23846-6, 15/11372-1)

OLIVEIRA, JADER; CHABOLI ALEVI, KAIO CESAR; RAVAZI, AMANDA; HERRERA, HEITOR MIRAGLIA; SANTOS, FILIPE MARTINS; VILELA DE AZEREDO-OLIVEIRA, MARIA TERCILIA; DA ROSA, JOAO ARISTEU. New Evidence of the Monophyletic Relationship of the Genus Psammolestes Bergroth, 1911 (Hemiptera, Reduviidae, Triatominae). American Journal of Tropical Medicine and Hygiene, v. 99, n. 6, p. 1485-1488, 2018. (15/11372-1, 13/19764-0)

DE OLIVEIRA, JADER; RAVAZI, AMANDA; SOUZA, EDER DOS SANTOS; FIGUEIREDO MOREIRA, FELIPE FERRAZ; GALVAO, CLEBER; DA ROSA, JOAO ARISTEU; CHABOLI ALEVI, KAIO CESAR. Study of the Salivary Glands in Triatominae (Hemiptera, Reduviidae, Triatominae): Their Color and Application to the Chagas Disease Vector Evolution. American Journal of Tropical Medicine and Hygiene, v. 97, n. 3, p. 771-773, 2017. (15/11372-1, 13/08826-5, 13/19764-0)