Motor control in a Drosophila taste circuit.
Motor control in a Drosophila taste circuit.
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DOI:
10.1016/j.neuron.2008.12.033
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发表时间:
2009-02-12
期刊:
影响因子:
16.2
通讯作者:
Scott, Kristin
中科院分区:
文献类型:
--
作者:
Gordon, Michael D.;Scott, Kristin
Tastes elicit innate behaviors critical for directing animals to ingest nutritious substances and reject toxic compounds, but the neural basis of these behaviors is not understood. Here, we use a neural silencing screen to identify neurons required for a simple Drosophila taste behavior, and characterize a neural population that controls a specific subprogram of this behavior. By silencing and activating subsets of the defined cell population, we identify the neurons involved in the taste behavior as a pair of motor neurons located in the subesophageal ganglion (SOG). The motor neurons are activated by sugar stimulation of gustatory neurons and inhibited by bitter compounds; however, experiments utilizing split-GFP detect no direct connections between the motor neurons and primary sensory neurons, indicating that further study will be necessary to elucidate the circuitry bridging these populations. Combined, these results provide a general strategy and a valuable starting point for future taste circuit analysis.
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