Male antennae of Armadillidium vulgare discriminate Wolbachia-infected females

In natural populations of A. vulgare , the endosymbiont Wolbachia feminizes genetic males. When confronted with genetic females and feminized males, males prefer genetic females. We tested whether the ability of males to discriminate both females involved the detection of chemical compounds by extra...

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Bibliographic Details
Published in:Comptes rendus. Chimie Vol. 26; no. S2; pp. 155 - 164
Main Authors: Mouret, Nicolas, Tolassy, Vincent, Richard, Freddie-Jeanne
Format: Journal Article
Language:English
Published: Académie des sciences (Paris) 01.01.2023
Académie des sciences
Subjects:
Electroantennography
Endoparasites
Life Sciences
Mate choice
Scanning electron microscopy
Terrestrial isopods
Wolbachia pipientis
Electroantennography
Endoparasites
Scanning electron microscopy
Choix du partenaire
Microscopie électronique à balayage
Isopodes terrestres
Terrestrial isopods
Wolbachia pipientis
Mate choice
Électroantennographie
ISSN:1631-0748, 1878-1543
Online Access:Get full text
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Summary:In natural populations of A. vulgare , the endosymbiont Wolbachia feminizes genetic males. When confronted with genetic females and feminized males, males prefer genetic females. We tested whether the ability of males to discriminate both females involved the detection of chemical compounds by extracting female cuticular compounds through various solvent baths and presenting them to male antennae. We also tested female antennae responses to evaluate the potential impact of Wolbachia on individual detection. Our results showed that only the ethyl acetate extracts triggered a significantly different response of male antennae between the two types of females. No difference between female antennal detection was recorded. Further experiments are required to identify the involved molecule explaining the sexual preference of males towards Wolbachia -free females.
ISSN:1631-0748
1878-1543
DOI:10.5802/crchim.238