Titre :

The taste of origin in a lady beetle: do males discriminate between females based on cuticular hydrocarbons?

Auteur(s) :

Legrand, Pauline [Auteur]
Gembloux Agro-Bio Tech [Faculté universitaire des sciences agronomiques de Gembloux] [[FUSAGx]]
Vanderplanck, Maryse [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Marko, Istvan [Auteur]
Université Catholique de Louvain = Catholic University of Louvain [UCL]
Gillard, Laurent [Auteur]
Université Catholique de Louvain = Catholic University of Louvain [UCL]
Lognay, Georges [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Lorge, Stéphanie [Auteur]
Gembloux Agro-Bio Tech [Faculté universitaire des sciences agronomiques de Gembloux] [[FUSAGx]]
Maesen, Philippe [Auteur]
Gembloux Agro-Bio Tech [Faculté universitaire des sciences agronomiques de Gembloux] [[FUSAGx]]
Vilcinskas, Andreas [Auteur]
Philipps Universität Marburg = Philipps University of Marburg
Vogel, Heiko [Auteur]
Max Planck Institute for Chemical Ecology
Foucaud, Julien [Auteur]
Centre de Biologie pour la Gestion des Populations [UMR CBGP]
Estoup, Arnaud [Auteur]
Centre de Biologie pour la Gestion des Populations [UMR CBGP]
Francis, Frédéric [Auteur]
Gembloux Agro-Bio Tech [Faculté universitaire des sciences agronomiques de Gembloux] [[FUSAGx]]
Facon, Benoit [Auteur]
Peuplements végétaux et bioagresseurs en milieu tropical [UMR PVBMT]
Centre de Biologie pour la Gestion des Populations [UMR CBGP]
Verheggen, François [Auteur]
Gembloux Agro-Bio Tech [Faculté universitaire des sciences agronomiques de Gembloux] [[FUSAGx]]

Titre de la revue :

Physiological Entomology

Pagination :

160-168

Éditeur :

Wiley

Date de publication :

2019-02-18

ISSN :

0307-6962

Mot(s)-clé(s) en anglais :

Harmonia axyridis
inbreeding avoidance
mate selection
multicoloured Asian lady beetle
preferential mating

Discipline(s) HAL :

Sciences du Vivant [q-bio]/Génétique/Génétique des populations [q-bio.PE]

Résumé en anglais : [en]

The Asian lady beetle Harmonia axyridis originates from Asia and has established invasive populations worldwide. Recent population genetic studies trace their invasion routes and demonstrate that bottlenecks in population ...
Lire la suite >The Asian lady beetle Harmonia axyridis originates from Asia and has established invasive populations worldwide. Recent population genetic studies trace their invasion routes and demonstrate that bottlenecks in population size have reduced their genetic diversity. Consequently, phenotypical differences are highlighted between native and invasive populations. Among phenotypical traits, cuticular hydrocarbons (CHCs) might reflect the geographical origin of a lady beetle, especially because of their genetic basis. The present study investigates whether (i) the CHC profiles qualitatively and quantitatively differ between females of H. axyridis from native and invasive populations and (ii) males discriminate females from native and invasive populations using CHC profiles. CHCs are solvent-extracted before being quantified and identified by gas chromatography and mass spectrometry. In total, 17 CHCs are detected from female elytra, including six alkanes, three polyunsaturated and eight monounsaturated alkenes. The total quantity of CHCs differs among the populations, with lady beetles from Tai'an (China) displaying higher CHC concentrations than lady beetles from Gembloux (Belgium) and from Beijing (China) populations. Multivariate analyses detect differences in CHC qualitative profiles, with females from Tai'an being different from the two other populations. Finally, behavioural assays show that females originating from the native Tai'an population are less preferred by males, whereas females from the invasive population are mounted more often. The behavioural assays suggest that CHCs are not involved in discrimination of mating partners based on their origin.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Évolution, Écologie et Paléontologie (Evo Eco Paleo) - UMR 8198

Source :

Harvested from HAL