Triatoma brasiliensis species complex: characterization of the external female genitalia

Autor(es)

de Oliveira, Jader ^[1] ; Chaboli Alevi, Kaio Cesar ^[1] ; Almeida, Carlos Eduardo ^[2] ; Mendonca, Vagner Jose ^[3] ; Costa, Jane ^[4] ; da Rosa, Joao Aristeu ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Fac Ciencias Farmaceut, Campus Araraquara, Sao Paulo - Brazil

^[2] Univ Estadual Campinas, Inst Biol, UNICAMP, Sao Paulo - Brazil

^[3] Univ Fed Piaui, UFPI, Teresina, PI - Brazil

^[4] Fiocruz MS, Lab Biodiversidade Entomol, Inst Oswaldo Cruz, Rio De Janeiro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF VECTOR ECOLOGY; v. 45, n. 1, p. 57-68, JUN 2020.
• Citações Web of Science: 0

Resumo

The Triatoma brasiliensis complex is composed of six species (Triatoma bahiensis, T. juazerensis, T. lenti, T. melanica, T. petrocchiae, and T. sherlocki) and two subspecies (T. brasiliensis brasiliensis and T. b. macromelasoma). Phylogenetic studies have shown that it is a monophyletic group, but the morphological relationships among the members can be better understood. We applied a tool of high resolution based on morphology to identify details that characterize the female genitals for each member of this group. The external genital structures of five to fifteen females of each taxon were analyzed. Insects had their abdomen transversely cut to separate the last abdominal segments, and representative illustrations obtained via scanning electron microscopy (SEM) are shown. Observations were performed in the dorsal and the ventral views. The morphological characterization of female external genitalia allowed a differentiation of each species/subspecies. The subspecies T. b. brasiliensis and T. b. macromelasoma were the most similar. On the other hand, dorsal view of structures evidenced some unique characteristics for T. petrocchiae and T. sherlocki. Regarding these structures for T. petrocchiae, the differentiation was in accordance with molecular studies, since this species exhibits the highest genetic distances in relation to other species of T. brasiliensis complex. (AU)

• Processo FAPESP: 16/08176-9 - Abordagem integrada de parâmetros morfo-moleculares para Triatoma brasiliensis, o principal vetor da Doença de Chagas no semiárido brasileiro: a elucidação de elos da cadeia ecoepidemiológica
• Beneficiário: Carlos Eduardo de Almeida
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 13/08826-5 - Estudo morfológico, morfométrico e molecular de espécies do complexo Triatoma brasiliensis (Hemiptera, Reduviidae, Triatominae)
• Beneficiário: Jader de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Mestrado