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Neuroscience JoVE (Open Access) Citable · DOI

Dyeing Insects for Behavioral Assays: the Mating Behavior of Anesthetized Drosophila

DOI: 10.3791/52645-v
What you'll learn
  • ✓ Prepare food coloring dye solutions for individual Drosophila identification
  • ✓ Conduct mating trials with dyed flies using non-anesthetic marking methods
  • ✓ Analyze mating success data across Drosophila species
  • ✓ Compare dye-marking efficacy to standard CO2 anesthetization protocols
Protocol

This protocol describes a simple, cost effective way to individually identify Drosophila or other insects. Demonstration data investigating mating success across three species of Drosophila show that this method is comparable or better than the use of CO2 anaesthesia.

Difficulty
beginner
Total time
~1–2 hours per mating trial cohort (excluding fly rearing time)
Model organism
Drosophila melanogaster, Drosophila simulans, Drosophila virilis

Steps

1
Prepare food coloring solutions and conduct mating trials

Mix food coloring with appropriate medium to create individual identification dyes for Drosophila. Anesthetize or handle flies and apply dye marks, then set up controlled mating trial chambers with marked individuals.

▶ 01:23
2
Record and analyze mating success data

Observe mating trials and document mating outcomes across marked individuals. Compile success rates and compare results across Drosophila species tested.

▶ 03:51
3
Summarize findings and method validation

Review comparative efficacy of dye-marking versus CO2 anesthesia for individual fly identification in behavioral assays.

▶ 05:14
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