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A Novel Behavioral Assay to Investigate Gustatory Responses of Individual, Freely-moving Bumble Bees Bombus terrestris
Published on: July 21, 2016
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Large-scale transcriptome changes in the process of long-term visual memory formation in the bumblebee, Bombus
Li Li1, Songkun Su2, Clint J Perry3
1School of Biological and Chemical Sciences, Queen Mary University of London, London, E1 4NS, UK. li.li-zizhang@qmul.ac.uk.
Scientific Reports
|January 12, 2018
Summary
This study reveals dynamic gene expression changes in bumblebees during visual memory formation. Key genes involved in signal transduction and protein synthesis were identified, offering insights into long-term memory mechanisms.
Area of Science:
- Neuroscience
- Molecular Biology
- Behavioral Ecology
Background:
- Long-term memory formation involves complex genetic mechanisms.
- Understanding genome's dynamic transcriptional response during memory is crucial.
- Previous research has implicated numerous genes but lacks dynamic transcriptional insights.
Purpose of the Study:
- To investigate dynamic transcriptome changes during visual memory formation in bumblebees.
- To identify specific genes and pathways involved in immediate and delayed memory consolidation.
- To provide a foundation for future research into gene regulation in learning and memory.
Main Methods:
- Utilized high-throughput sequencing to analyze transcriptome profiles.
- Trained bumblebees (Bombus terrestris) using associative colour learning.
- Examined gene expression changes at immediate and four-hour post-training time points.
Main Results:
- Fifty-five genes showed altered expression immediately after training, predominantly involved in signal transduction.
- Eighty-one genes exhibited changed expression four hours post-training, mainly related to transcription and translation.
- Identified specific candidate genes (e.g., Rab10, Shank1, Arhgap44) for further investigation.
Conclusions:
- Associative colour learning induces significant, time-dependent transcriptional changes in bumblebees.
- Immediate changes involve signal transduction, while later changes suggest protein synthesis for memory consolidation.
- The identified genes provide valuable targets for elucidating molecular mechanisms of long-term memory.
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