Assessment of wing geometric morphometrics of urban Culex quinquefasciatus (Diptera: Culicidae) populations

Autor(es)

Oliveira-Christe, Rafael ; de Carvalho, Gabriela Cristina ; Wilke, Andre Barretto Bruno ; Marrelli, Mauro Toledo

• Tipo de documento: Artigo Científico
• Fonte: Acta Tropica; v. 245, p. 7-pg., 2023-06-20.

Resumo

Culex quinquefasciatus is a cosmopolitan species distributed throughout tropical and subtropical areas of the world. The species is of great epidemiological importance as it is responsible for vectoring the causative agent of lymphatic filariasis and several arboviruses, including West Nile virus. Wing geometric morphometrics has been widely used to assess phenotypic variations in mosquito species. Here, we hypothesize that Cx. quinquefasciatus populations in urban parks in the city of Sa & SIM;o Paulo, Brazil, have been subjected to anthropogenic selective pressures that are responsible for driving their ecology and behavior. Mosquitoes were collected by CDC traps in five municipal parks in the city of Sa & SIM;o Paulo. Eighteen anatomical landmark coordinates on each female right wing were digitized. Canonical variate analysis, wireframe graphs, cross-validated reclassification tests and the neighbor-joining method were used to assess phenotypical dissimilarity in wing shape between populations. Centroid size was calculated to assess differences in wing size between populations, which can result from different environmental conditions during immature mosquito development. Moderately heterogeneous wing shape and wing size patterns were found in the populations analyzed, indicating that selective pressures in the urban environment are affecting the wing patterns of Cx. quinquefasciatus populations in the city of Sa & SIM;o Paulo, Brazil. (AU)

• Processo FAPESP: 18/25437-6 - Estudo dos potenciais vetores e fatores ecológicos associados à emergência e circulação da febre amarela no Brasil
• Beneficiário: Mauro Toledo Marrelli
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular
• Processo FAPESP: 17/23127-7 - Análise da influência da paisagem sobre a estrutura populacional de mosquitos Haemagogus (Conopostegus) leucocelaenus (Diptera: Culicidae), em áreas com histórico de epizootias de Febre Amarela em primatas não humanos no estado de São Paulo
• Beneficiário: Ramon Wilk da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/18751-6 - Desenvolvimento de modelos preditivos para a dinâmica de transmissão e dispersão espacial da febre amarela silvestre no Brasil.
• Beneficiário: Antônio Ralph Medeiros de Sousa
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado