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PHENOTYPIC IDENTIFICATION AND STUDY OF TRIATOMINAE TRANSCRIPTOMA (HEMIPTERA, REDUVIIDAE)

Abstract

Chagas' disease has as the etiological agent the protozoan Trypanosoma cruzi and the main form of transmission to humans is the vector through triatomines. The subfamily Triatominae has 18 genera and 152 species, of which two are fossils. The control of triatomines is necessary since it is the most efficient way to prevent the transmission of Chagas' disease. Thus, in order to disseminate the specific recognition of triatomines, we intend to obtain, computerize and make available images of these vectors. In order to do so, we will use images of 55 species of triatomines kept alive in 194 colonies in the "Insetário de Triatominae da Faculdade de Ciências Farmacêuticas / UNESP / Araraquara" and others that are obtained. It is also intended to provide images of the genus Mepraia that includes the species: M. gajardoi, M. parapatrica and M. spinolai. These three species occur only in Chile. The females of the three species are all micropterous, but the males are not. The males of M. gajardoi are brachypteros; Those of M. parapatrica macropterous or brachypterous and those of M. spinolai can be macropterous, brachypterous or micropterous. As in the subfamily Triatominae only this genus with sexual dimorphism is known in the alares, it is proposed the study of its three species. Thus, we intend to investigate genetic differences in species of this genus, for which will be made libraries of total RNA of cephalic tissues from next-generation sequencing strategies (RNA-seq). It is also intended to find possible differential profiles of gene expression in transcripts of salivary head and gland of females and males. Comparisons of the genetic profiles of M. gajardoi, M. parapatrica and M. spinolai obtained by RNA-seq will help to understand the evolutionary relationship in species of this genus and also of the subfamily Triatominae. For the development of this project will require collections to be made in Chile, so we will have the support of Professor Daniel Frias Lasserre of the Institute of Entomology of the Metropolitan University of Education Sciences, Santiago, Chile. For the study of transcriptomas we will have the support of Professor Dr. Reinaldo Brito of the Department of Genetics and Evolution of the Federal University of São Carlos. The image bank will be useful to help identify the species by the lay public, scientific and professionals involved in vector control campaigns linked to municipal health secretariats. (AU)

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Scientific publications (5)
(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)
LAZARI CACINI, GUSTAVO; DE OLIVEIRA, JADER; BELINTANI, TIAGO; DOS SANTOS SOUZA, EDER; OLAIA, NICOLY; PINTO, MARA CRISTINA; DA ROSA, JOAO ARISTEU. Immature instars of three species of Rhodnius Stal, 1859 (Hemiptera, Reduviidae, Triatominae): morphology, morphometry, and taxonomic implications. PARASITES & VECTORS, v. 15, n. 1, p. 16-pg., . (17/13674-0, 17/06460-4)
FRIAS LASSERRE, DANIEL; DE OLIVEIRA, JADER; PINOTTI, HELOISA; DA ROSA, JOAO ARISTEU. Morphological description of Mepraia spp. females (Hemiptera: Reduviidae, Triatominae). Acta Tropica, v. 190, p. 389-394, . (17/06460-4)
DA ROSA, JOAO ARISTEU; DE OLIVEIRA, JADER; FRIAS LASERRE, DANIEL ALFREDO. New records of Mepraia (Hemiptera, Reduviidae, Triatominae) in Chile. JOURNAL OF VECTOR ECOLOGY, v. 44, n. 1, p. 195-198, . (17/06460-4)
BELINTANI, TIAGO; CONGRAINS, CARLOS; PINOTTI, HELOISA; CHAHAD-EHLERS, SAMIRA; DE BRITO, REINALDO A.; OLIVEIRA, JADER; LASSERRE, DANIEL FRIAS; FONTES, FELIPE MENDES; DA ROSA, JOAO ARISTEU. Transcriptome-based phylogenomic analysis reveals evidence of ancient hybridization events in the Mepraia genus (Hemiptera: Reduviidae: Triatominae). FRONTIERS IN ECOLOGY AND EVOLUTION, v. 11, p. 16-pg., . (17/06460-4, 19/02145-2)
DE OLIVEIRA, JADER; DA ROSA, JOAO ARISTEU; ALEVI, KAIO CESAR CHABOLI. Chagas Disease Vectors of Espirito Santo, Brazil: First Report of Triatoma infestans (Klug, 1834) (Hemiptera, Triatominae) in the Brazilian State and Development of an Identification Key Based on Cytogenetic Data. American Journal of Tropical Medicine and Hygiene, v. 104, n. 2, p. 3-pg., . (17/06460-4)

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