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Titolo:
Developmental expression of an amn(+) transgene rescues the mutant memory defect of amnesiac adults
Autore:
DeZazzo, J; Xia, SZ; Christensen, J; Velinzon, K; Tully, T;
Indirizzi:
Cold Spring Harbor Lab, Cold Spring Harbor, NY 11724 USA Cold Spring Harbor Lab Cold Spring Harbor NY USA 11724 rbor, NY 11724 USA
Titolo Testata:
JOURNAL OF NEUROSCIENCE
fascicolo: 20, volume: 19, anno: 1999,
pagine: 8740 - 8746
SICI:
0270-6474(19991015)19:20<8740:DEOAAT>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
DROSOPHILA-MELANOGASTER; MUSHROOM BODIES; TERM-MEMORY; GENE; DISSECTION; STORAGE; LINOTTE;
Keywords:
Drosophila; neuropeptide; Pavlovian learning; neurogenetics; mutants; behavioral rescue; olfactory memory; associative learning; neurodevelopment; cAMP signaling; ethanol sensitivity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Tully, T Cold Spring Harbor Lab, POB 100, Cold Spring Harbor, NY 11724 USACold Spring Harbor Lab POB 100 Cold Spring Harbor NY USA 11724 SA
Citazione:
J. DeZazzo et al., "Developmental expression of an amn(+) transgene rescues the mutant memory defect of amnesiac adults", J NEUROSC, 19(20), 1999, pp. 8740-8746

Abstract

The Drosophila memory gene amnesiac (amn) has been proposed to encode a neuropeptide protein, which includes regions homologous to vertebrate pituitary adenylyl cyclase-activating peptide (PACAP; Feany and Quinn, 1995). Definitive experiments to link this gene to memory formation, however, have notyet been accomplished (Kandel and Abel, 1995). The experiments described here demonstrate that the putative amn transcript is involved in adult memory formation. With the use of a UAS-amn(+) transgene, we show complete rescue of memory defects in amn(28A), a mutant allele caused by the insertion ofa GAL4 enhancer trap transposon (Moore et al., 1998). Study of the amn(28A) reporter reveals widespread expression in the adult brain but also enriched expression in the embryonic and larval nervous systems. To begin addressing the temporal requirement of amn in memory, we asked whether the memory defects could be rescued by restricting transgenic expression to the adult stage. A heat-shock regimen shown previously to rescue fully the amn ethanol sensitivity defect (Moore et al., 1998) failed to rescue the memory defect. These results, coupled with previous genetic and anatomical studies, suggest that adult memory formation and ethanol sensitivity have different temporal and spatial requirements for amn.

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Documento generato il 13/07/20 alle ore 11:16:30