Related Experiment Video
Updated: May 6, 2026
06:49
Author Spotlight: Examining Volatile Sex Pheromone Influence on Male C. elegans Behavior
Published on: August 9, 2024
2.6K
Aggregation pheromones ofDrosophila immigrans, D. phalerata, andD. subobscura
K Hedlund1, R J Bartelt, M Dicke
1Department of Entomology, Wageningen Agricultural University, P.O. Box 8031, 6700 EH, Wageningen, The Netherlands.
Journal of Chemical Ecology
|November 15, 2013
Summary
Male flies of three Drosophila species produce aggregation pheromones. While all species respond to male extracts, only Drosophila subobscura shows attraction to cis-vaccenyl acetate (cVA) from other species.
Area of Science:
- Chemical Ecology
- Entomology
- Behavioral Biology
Background:
- Aggregation pheromones play a crucial role in insect communication and reproduction.
- Understanding species-specific responses to pheromones is key to pest management and evolutionary studies.
- Drosophila species utilize various chemical cues for social interactions.
Purpose of the Study:
- To identify and characterize aggregation pheromones in Drosophila immigrans, D. phalerata, and D. subobscura.
- To investigate the role of cis-vaccenyl acetate (cVA) in interspecies attraction.
- To determine the chemical composition of pheromones produced by these Drosophila species.
Main Methods:
- Wind tunnel bioassays were conducted to test the attractiveness of hexane extracts from adult flies.
- Gas chromatography-mass spectrometry (GC-MS) was used to analyze the chemical profiles of pheromone extracts.
- Synthetic cis-vaccenyl acetate (cVA) was used to confirm specific attractant properties.
Main Results:
- Male extracts from all three species attracted conspecific males and females.
- Drosophila subobscura exhibited attraction to cVA present in extracts of D. immigrans and D. phalerata.
- D. immigrans and D. phalerata were attracted to synthetic cVA, while D. subobscura produced various hydrocarbons and minor cVA.
Conclusions:
- Aggregation pheromones are present in D. immigrans, D. phalerata, and D. subobscura, mediating conspecific attraction.
- cis-Vaccenyl acetate (cVA) functions as a significant aggregation pheromone component for D. immigrans and D. phalerata, with D. subobscura showing a unique response pattern.
- The study highlights species-specific differences in pheromone production and reception within the Drosophila genus.
