Incipient speciation in Drosophila melanogaster involves chemical signals.

Micheline Grillet Claude Everaerts 1 Benjamin Houot 1 Michael G Ritchie Matthew Cobb Jean-François Ferveur 1, *
* Auteur correspondant
1 CSGA - Centre des Sciences du Goût et de l'Alimentation [Dijon]
Abstract : The sensory and genetic bases of incipient speciation between strains of Drosophila melanogaster from Zimbabwe and those from elsewhere are unknown. We studied mating behaviour between eight strains - six from Zimbabwe, together with two cosmopolitan strains. The Zimbabwe strains showed significant sexual isolation when paired with cosmopolitan males, due to Zimbabwe females discriminating against these males. Our results show that flies' cuticular hydrocarbons (CHs) were involved in this sexual isolation, but that visual and acoustic signals were not. The mating frequency of Zimbabwe females was highly significantly negatively correlated with the male's relative amount of 7-tricosene (%7-T), while the mating of cosmopolitan females was positively correlated with %7-T. Variation in transcription levels of two hydrocarbon-determining genes, desat1 and desat2, did not correlate with the observed mating patterns. Our study represents a step forward in our understanding of the sensory processes involved in this classic case of incipient speciation.
Keywords : Animal behaviour Molecular evolution Speciation Evolutionary biology sexual isolation cuticular hydrocarbons reproductive isolation desaturase gene courtship song pheromones populations evolution polymorphism mutation
Type de document :
Article dans une revue
Scientific Reports, Nature Publishing Group, 2012, 2, pp.1-11 (Article number: 224). 〈10.1038/srep00224〉
Liste complète des métadonnées

Littérature citée [47 références]  Voir  Masquer  Télécharger
https://hal-univ-bourgogne.archives-ouvertes.fr/hal-00723324
Contributeur : Sabine Julien <>
Soumis le : mardi 26 septembre 2017 - 21:53:31
Dernière modification le : vendredi 8 juin 2018 - 14:50:16
Document(s) archivé(s) le : mercredi 27 décembre 2017 - 16:36:15

Fichier

publi_4715_{C73E4BD3-7282-46D8...
Accord explicite pour ce dépôt

Identifiants

Collections

INRA | CSGA

Citation

Micheline Grillet, Claude Everaerts, Benjamin Houot, Michael G Ritchie, Matthew Cobb, et al.. Incipient speciation in Drosophila melanogaster involves chemical signals.. Scientific Reports, Nature Publishing Group, 2012, 2, pp.1-11 (Article number: 224). 〈10.1038/srep00224〉. 〈hal-00723324〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

112

Téléchargements de fichiers

28

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD