Related Experiment Video
Updated: Mar 7, 2026
07:19
A New Approach that Eliminates Handling for Studying Aggression and the "Loser" Effect in Drosophila melanogaster
Published on: December 30, 2015
10.2K
Putative transmembrane transporter modulates higher-level aggression in Drosophila.
Budhaditya Chowdhury1, Yick-Bun Chan1, Edward A Kravitz2
1Department of Neurobiology, Harvard Medical School, Boston, MA 02115.
Summary
Selective breeding created a hyperaggressive fly line. Reduced expression of the CG13646 gene, a solute carrier protein, partially caused this aggressive behavior.
Area of Science:
- Behavioral genetics
- Neurobiology
- Genomics
Background:
- Aggression is a complex behavior influenced by genetic and environmental factors.
- Understanding the genetic basis of aggression can provide insights into neurological processes.
Purpose of the Study:
- To identify genes associated with hyperaggression in *Drosophila melanogaster*.
- To investigate the role of the *CG13646* gene in mediating aggressive behavior.
Main Methods:
- Selective breeding for aggression over 35 generations to create a hyperaggressive 'Bully' fly line.
- RNA sequencing (RNA-seq) to identify differentially expressed genes in the Bully line.
- Genetic manipulation (mutant and RNAi lines) to assess the function of *CG13646*.
Main Results:
- A hyperaggressive Bully fly line was generated, exhibiting temperature-dependent phenotype maintenance.
- Down-regulation of the *CG13646* gene (a putative transmembrane transporter) was consistently observed in Bully flies.
- Reduced expression of *CG13646* led to a partially hyperaggressive phenotype, indicating a causal role.
Conclusions:
- The *CG13646* gene, encoding a solute carrier protein, plays a role in regulating aggressive behavior in flies.
- This finding suggests potential conserved roles for solute carrier proteins in the neurobiology of aggression across species.
