Maternally-transmitted microbiota affects odor emission and preference in Drosophila larva

Experimental studies show that early sensory experience often affects subsequent sensory preference, suggesting that the heterogeneity of sensory cues in nature could induce significant inter-individual behavioral variation, potentially contributing to maintain intraspecific diversity. To test this...

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Bibliographic Details
Published in:Scientific reports 2017-07, Vol.7 (1), p.6062-10, Article 6062
Main Authors: Farine, Jean-Pierre, Habbachi, Wafa, Cortot, Jérôme, Roche, Suzy, Ferveur, Jean-François
Format: Article
Language:English
Subjects:
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Acetoin
Acetoin - metabolism
Animals
Behavior, Animal
Drosophila
Drosophila - microbiology
Drosophila melanogaster
Early experience
Female
Heterogeneity
Host-Pathogen Interactions
Human health and pathology
Humanities and Social Sciences
Insects
Larva
Larvae
Life Sciences
Microbiota
Microorganisms
multidisciplinary
Odor
Odorants
Olfaction
Pheromones
Science
Science (multidisciplinary)
Sensory evaluation
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Summary:Experimental studies show that early sensory experience often affects subsequent sensory preference, suggesting that the heterogeneity of sensory cues in nature could induce significant inter-individual behavioral variation, potentially contributing to maintain intraspecific diversity. To test this hypothesis, we explored the behavioral effect induced by variation in the levels of a self-produced chemical, acetoin, and its link with intraspecific diversity. Acetoin is a pheromone-like substance produced by gut-associated microorganisms in Drosophila . Using wild-type Drosophila melanogaster populations producing variable acetoin levels, we ( i ) characterized factors involved in this variation and ( ii ) manipulated some of these factors to affect acetoin responses in larvae. We found that increased and decreased variations in acetoin levels were caused by microorganisms associated with the outside and inside of the egg, respectively. Wild-type larvae preferred acetoin-rich food only when they both produced and were exposed to substantial amounts of acetoin. The removal of the outside of the egg or the genetic alteration of olfaction abolished this preference. In contrast, larvae exposed to high doses of synthetic acetoin were repulsed by acetoin. The similar effects obtained with freshly caught wild-type lines suggest that this acetoin “production-preference” link underlies the diversity of acetoin-producing microorganisms among natural D. melanogaster populations.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-04922-z