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Article Dans Une Revue Journal of Chemical Ecology Année : 2022

Aging-related variation of cuticular hydrocarbons in wild type and variant Drosophila melanogaster

Jérôme Cortot
  • Fonction : Auteur
Jean-Pierre Farine
  • Fonction : Auteur
Jean-François Ferveur

Résumé

Abstract The cuticle of all insects is covered with hydrocarbons which have multiple functions. Cuticular hydrocarbons (CHCs) basically serve to protect insects against environmental harm and to reduce dehydration. In many species, some CHCs also act as pheromones. CHCs have been intensively studied in Drosophila species and more specially in D. melanogaster. In this species, flies produce about 40 CHCs forming a complex sex- and species-specific bouquet. The quantitative and qualitative pattern of the CHC bouquet was characterized during the first days of adult life but remains unexplored in aging flies. Here, we characterized CHCs during the whole—or a large period of—adult life in males and females of several wild type and transgenic lines. Both types of lines included standard and variant CHC profiles. Some of the genotypes tested here showed very dramatic and unexpected aging-related variation based on their early days profile. This study provides a concrete dataset to better understand the mechanisms underlying the establishment and maintenance of CHCs on the fly cuticle. It could be useful to determine physiological parameters, including age and response to climate variation, in insects collected in the wild.
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Dates et versions

hal-03450666 , version 1 (26-11-2021)
hal-03450666 , version 2 (24-11-2022)

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Jérôme Cortot, Jean-Pierre Farine, Jean-François Ferveur, Claude Everaerts. Aging-related variation of cuticular hydrocarbons in wild type and variant Drosophila melanogaster. Journal of Chemical Ecology, 2022, ⟨10.1007/s10886-021-01344-0 ⟩. ⟨hal-03450666v2⟩
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