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Gene expression profile of Aedes aegypti females in courtship and mating

Texto completo
Alonso, Diego Peres [1, 2] ; Campos, Melina [1, 2] ; Troca, Heitor [1, 2] ; Kunii, Rafael [1, 2] ; Tripet, Frederic [3] ; Martins Ribolla, Paulo Eduardo [1, 2]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Sao Paulo State Univ UNESP, Biotechnol Inst, BR-18618689 Botucatu, SP - Brazil
[2] Biosci Inst, BR-18618689 Botucatu, SP - Brazil
[3] Keele Univ, Ctr Appl Entomol & Parasitol, Keele ST5 5BG, Staffs - England
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: SCIENTIFIC REPORTS; v. 9, OCT 29 2019.
Citações Web of Science: 0

Aedes aegypti is the most synanthropic and anthropophilic mosquito of Culicidae. This species always cohabits with humans and is extremely opportunistic. Vector dispersal is directly related to the ability of the females on successfully finding a mate in a generally patchy urban scenario. In the present work, we investigate transcriptional changes in Ae. aegypti females during the courtship process and after mating. We observe a substantial alteration in gene expression triggered just upon contact with Ae. aegypti males, which in turn was not fully correlated to the changes triggered by the contact. After analysing shared significant differentially regulated genes between conspecific contact and insemination, the major part of the observed transcriptomic change triggered by contact is reversed after mating, indicating an intermediary situation between naive and mating conditions that we hypothesize to be crucial for mating success. Upon contact, several chemosensory related genes are repressed, especially odorant binding proteins. Most of these genes return to higher expression rates after mating. None of these genes are significantly regulated by the encounter of a different species, Aedes albopictus. The results presented here might be applied to an innovative control approach focusing on the semiochemical systems of mosquitoes in an effort to disrupt undesirable host-insect interaction to reduce the risk of pathogen transmission to humans. (AU)

Processo FAPESP: 13/10481-6 - Análise da satirização entre Aedes aegypti e Aedes albopictus no Brasil
Beneficiário:Paulo Eduardo Martins Ribolla
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 15/50411-2 - Frederic Tripet | Keele University - Inglaterra
Beneficiário:Paulo Eduardo Martins Ribolla
Linha de fomento: Auxílio à Pesquisa - Pesquisador Visitante - Internacional