AI Article Synopsis
- The study investigates how different genetic mutations in Drosophila affect their ability to learn and remember when choosing between two sucrose concentrations.
- Four mutations (dunce, rutabaga, amnesiac, and radish) were tested, revealing that three of them impaired cyclic AMP signaling and taste discrimination, while radish did not affect these traits.
- Despite the mutants showing reduced taste discrimination, electrophysiological tests indicated that their taste receptor sensitivity remained similar to wild-type flies, highlighting the role of central nervous learning and memory in food choice behavior.
Article Abstract
Acute choice behavior in ingesting two different concentrations of sucrose in Drosophila is presumed to include learning and memory. Effects on this behavior were examined for four mutations that block associative learning (dunce, rutabaga, amnesiac, and radish). Three of these mutations cause cyclic AMP signaling defects and significantly reduced taste discrimination. The exception was radish, which affects neither. Electrophysiological recordings confirmed that the sensitivity of taste receptors is almost indistinguishable in all flies, whether wild type or mutant. These results suggest that food choice behavior in Drosophila involves central nervous learning and memory operating via cyclic AMP signaling pathways.
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| http://dx.doi.org/10.1007/s00359-006-0200-z | DOI Listing |
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