Mate discrimination among subspecies through a conserved olfactory pathway.

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Ressource 1Télécharger: 32704542_BIB_3DFEF50CD36F.pdf (3244.96 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY-NC 4.0
ID Serval
serval:BIB_3DFEF50CD36F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Mate discrimination among subspecies through a conserved olfactory pathway.
Périodique
Science advances
Auteur(s)
Khallaf M.A., Auer T.O., Grabe V., Depetris-Chauvin A., Ammagarahalli B., Zhang D.D., Lavista-Llanos S., Kaftan F., Weißflog J., Matzkin L.M., Rollmann S.M., Löfstedt C., Svatoš A., Dweck HKM, Sachse S., Benton R., Hansson B.S., Knaden M.
ISSN
2375-2548 (Electronic)
ISSN-L
2375-2548
Statut éditorial
Publié
Date de publication
06/2020
Peer-reviewed
Oui
Volume
6
Numéro
25
Pages
eaba5279
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
Communication mechanisms underlying the sexual isolation of species are poorly understood. Using four subspecies of Drosophila mojavensis as a model, we identify two behaviorally active, male-specific pheromones. One functions as a conserved male antiaphrodisiac in all subspecies and acts via gustation. The second induces female receptivity via olfaction exclusively in the two subspecies that produce it. Genetic analysis of the cognate receptor for the olfactory pheromone indicates an important role for this sensory pathway in promoting sexual isolation of subspecies, in combination with auditory signals. Unexpectedly, the peripheral sensory pathway detecting this pheromone is conserved molecularly, physiologically, and anatomically across subspecies. These observations imply that subspecies-specific behaviors arise from differential interpretation of the same peripheral cue, reminiscent of sexually conserved detection but dimorphic interpretation of male pheromones in Drosophila melanogaster. Our results reveal that, during incipient speciation, pheromone production, detection, and interpretation do not necessarily evolve in a coordinated manner.
Pubmed
Web of science
Open Access
Oui
Création de la notice
25/11/2019 21:27
Dernière modification de la notice
15/01/2021 8:08
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