GSK-3/Shaggy regulates olfactory habituation in Drosophila.

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Proceedings of the National Academy of Sciences of the United States of America. 2007 Mar 13;104(11):4653-7. doi: 10.1073/pnas.0700493104

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GSK-3/Shaggy regulates olfactory habituation in Drosophila. Heberlein Lab

Wolf FW, Eddison M, Lee S, Cho W, Heberlein U

Note: Research in this publication was not performed at Janelia.

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Abstract

Habituation is a universal form of nonassociative learning that results in the devaluation of sensory inputs that have little information content. Although habituation is found throughout nature and has been studied in many organisms, the underlying molecular mechanisms remain poorly understood. We performed a forward genetic screen in Drosophila to search for mutations that modified habituation of an olfactory-mediated locomotor startle response, and we isolated a mutation in the glycogen synthase kinase-3 (GSK-3) homolog Shaggy. Decreases in Shaggy levels blunted habituation, whereas increases promoted habituation. Additionally, habituation acutely regulated Shaggy by an inhibitory phosphorylation mechanism, suggesting that a signal transduction pathway that regulates Shaggy is engaged during habituation. Although shaggy mutations also affected circadian rhythm period, this requirement was genetically separable from its role in habituation. Thus, shaggy functions in different neuronal circuits to regulate behavioral plasticity to an olfactory startle and circadian rhythmicity.

PMID: 17360579 [PubMed - indexed for MEDLINE]

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GSK-3/Shaggy regulates olfactory habituation in Drosophila.

Note: Research in this publication was not performed at Janelia.

Abstract

PMID: 17360579 [PubMed - indexed for MEDLINE]

Janelia Authors