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Rescue of the Learning Defect in Dunce, a Drosophila Learning Mutant, by an Allele of Rutabaga, a Second Learning Mutant

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Specialty Science
Date 1990 Apr 1
PMID 2157213
Citations 11
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Abstract

rutabaga1 (rut1), a Drosophila learning mutant, has adenylate cyclase (EC 4.6.1.1) with reduced basal activity and the absence of calcium/calmodulin-stimulated activity. A second learning mutant, dunce, is defective in cyclic AMP degradation due to decreased or absent phosphodiesterase activity. These opposing biochemical defects allow rut1 to partially suppress the female sterility caused by elevated cyclic AMP levels in dunce flies. Selection of mutations that suppress dunce sterility has led to the isolation of two rutabaga alleles. The alleles (rut2 and rut3) decrease basal adenylate cyclase activity [Bellen, H. J., Gregory, B. K., Olsson, C. L. & Kiger, J. A. (1987) Dev. Biol. 121, 432-444] but, unlike the original rutabaga mutation, leave the calcium/calmodulin-stimulated activity intact. Behaviorally, the two alleles also differ from rut1. One of the mutations partially rescues the dunce learning defect, and flies bearing both alleles learn. Calcium responsiveness may thus be the crucial component of adenylate cyclase activity required for associative learning.

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References
1.
Livingstone M, Tempel B . Genetic dissection of monoamine neurotransmitter synthesis in Drosophila. Nature. 1983; 303(5912):67-70. DOI: 10.1038/303067a0. View

2.
Dudai Y, Zvi S . Adenylate cyclase in the Drosophila memory mutant rutabaga displays an altered Ca2+ sensitivity. Neurosci Lett. 1984; 47(2):119-24. DOI: 10.1016/0304-3940(84)90416-6. View

3.
Kauvar L . Defective cyclic adenosine 3':5'-monophosphate phosphodiesterase in the Drosophila memory mutant dunce. J Neurosci. 1982; 2(10):1347-58. PMC: 6564408. View

4.
Bellen H, Gregory B, Olsson C, Kiger Jr J . Two Drosophila learning mutants, dunce and rutabaga, provide evidence of a maternal role for cAMP on embryogenesis. Dev Biol. 1987; 121(2):432-44. DOI: 10.1016/0012-1606(87)90180-1. View

5.
Krupinski J, Coussen F, Bakalyar H, Tang W, Feinstein P, Orth K . Adenylyl cyclase amino acid sequence: possible channel- or transporter-like structure. Science. 1989; 244(4912):1558-64. DOI: 10.1126/science.2472670. View