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resumen

Resumen
In order to reproduce, female tephritid fruit flies need both mates for fertilization and fruit for oviposition. Virgin females are prone to mating and approach males, attracted by their pheromones. Mated females, however, may experience an abrupt reduction of mating propensity and prioritise the search for suitable fruit rather than additional mates. Accordingly, mating in fruit flies may induce a switch in olfactory preferences of females from [ver mas...]
dc.contributor.authorDevescovi, Francisco
dc.contributor.authorHurtado, Juan
dc.contributor.authorTaylor, Phillip W.
dc.date.accessioned2021-04-15T14:55:37Z
dc.date.available2021-04-15T14:55:37Z
dc.date.issued2021-03
dc.identifier.issn1879-1611
dc.identifier.otherhttps://doi.org/10.1016/j.jinsphys.2021.104195
dc.identifier.urihttp://hdl.handle.net/20.500.12123/9099
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0022191021000056
dc.description.abstractIn order to reproduce, female tephritid fruit flies need both mates for fertilization and fruit for oviposition. Virgin females are prone to mating and approach males, attracted by their pheromones. Mated females, however, may experience an abrupt reduction of mating propensity and prioritise the search for suitable fruit rather than additional mates. Accordingly, mating in fruit flies may induce a switch in olfactory preferences of females from pheromones to fruit stimuli, and this switch may also be an important mediator of mating-induced sexual inhibition. To test for mating-induced switches in olfactory preference of female Queensland fruit fly, Bactrocera tryoni, we used wind tunnel assays to assess attraction of mated and virgin females to (1) male sex pheromone delivered through a perforated glass sphere or (2) an entire fruit. Electroantennogram (EAG) responses were also used to test for mating-induced changes in olfactory sensitivity to pheromones and fruit odours. Pheromones elicited quicker upwind responses in virgin females than in mated females; during the first six minutes of trials more virgin females than mated females were observed in the upwind end of the wind tunnel where pheromone odours were released. Fruit cues, in contrast, elicited stronger association with the upwind end of the wind tunnel in mated females than in virgin females from the fifth minute onwards. Also, mated females were observed on the fruit for longer periods than virgin females. EAG responses to pheromones and fruit odours were similar in virgin and mated females, indicating that changes in preferences are not a consequence of changes in peripheral sensitivity of antennae to odours but instead appear to be mediated by post-receptor processing. Our results show that mating reduces attraction to male-produced pheromones and increases attraction to fruit stimuli in B. tryoni females. We propose that this behavioural switch from mating stimuli to oviposition stimuli is an important mediator of mating-induced sexual inhibition in this species.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceJournal of Insect Physiology 129 : 104195 (Marzo 2021)es_AR
dc.subjectTephritidaees_AR
dc.subjectBactrocera tryonies_AR
dc.subjectSexual Behavioureng
dc.subjectComportamiento Sexuales_AR
dc.subjectOlfactioneng
dc.subjectOlfacciónes_AR
dc.subjectFemaleseng
dc.subjectHembraes_AR
dc.subjectPheromoneseng
dc.subjectFeromonases_AR
dc.subjectOvipositioneng
dc.subjectOviposiciónes_AR
dc.subject.otherSexual Inhibitioneng
dc.subject.otherInhibición Sexuales_AR
dc.subject.otherMosca de la Fruta
dc.titleMating-induced changes in responses of female Queensland fruit fly to male pheromones and fruit : a mechanism for mating-induced sexual inhibitiones_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Genéticaes_AR
dc.description.filFil: Devescovi, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética. Laboratorio de Genética de Insectos de Importancia Económica; Argentinaes_AR
dc.description.filFil: Devescovi, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentinaes_AR
dc.description.filFil: Devescovi, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Hurtado, Juan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentinaes_AR
dc.description.filFil: Hurtado, Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Taylor, Phillip W. Macquarie University. Applied BioSciences; Australiaes_AR
dc.subtypecientifico


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