RNA-interference knockdown of Drosophila pigment dispersing factor in neuronal subsets: the anatomical basis of a neuropeptide's circadian functions.
RNA-interference knockdown of Drosophila pigment dispersing factor in neuronal subsets: the anatomical basis of a neuropeptide's circadian functions.
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果蝇色素分散因子在神经元子集中的RNA截断:神经肽昼夜节律功能的解剖基础。
DOI:
10.1371/journal.pone.0008298
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发表时间:
2009-12-14
期刊:
影响因子:
3.7
通讯作者:
Taghert PH
中科院分区:
文献类型:
--
作者:
Shafer OT;Taghert PH
In animals, neuropeptide signaling is an important component of circadian timekeeping. The neuropeptide pigment dispersing factor (PDF) is required for several aspects of circadian activity rhythms in Drosophila. Here we investigate the anatomical basis for PDF's various circadian functions by targeted PDF RNA-interference in specific classes of Drosophila neuron. We demonstrate that PDF is required in the ventro-lateral neurons (vLNs) of the central brain and not in the abdominal ganglion for normal activity rhythms. Differential knockdown of PDF in the large or small vLNs indicates that PDF from the small vLNs is likely responsible for the maintenance of free-running activity rhythms and that PDF is not required in the large vLNs for normal behavior. PDF's role in setting the period of free-running activity rhythms and the proper timing of evening activity under light:dark cycles emanates from both subtypes of vLN, since PDF in either class of vLN was sufficient for these aspects of behavior. These results reveal the neuroanatomical basis PDF's various circadian functions and refine our understanding of the clock neuron circuitry of Drosophila.
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影响因子:
56.9
作者:
MICHEL, S;GEUSZ, ME;BLOCK, GD
通讯作者:
BLOCK, GD
影响因子:
5.3
作者:
Harrisingh, Marie C.;Wu, Ying;Nitabach, Michael N.
通讯作者:
Nitabach, Michael N.
DOI:
10.1007/s003590050192
发表时间:
1998-04-01
期刊:
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
影响因子:
--
作者:
Helfrich-Förster, C
通讯作者:
Helfrich-Förster, C
影响因子:
64.8
作者:
Grima, B;Chèlot, E;Rouyer, F
通讯作者:
Rouyer, F
影响因子:
2.5
作者:
Helfrich-Foerster, Charlotte;Shafer, Orte T.;Taghert, Paul
通讯作者:
Taghert, Paul