Optogenetic manipulation of neural circuits and behavior in Drosophila larvae.
Optogenetic manipulation of neural circuits and behavior in Drosophila larvae.
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DOI:
10.1038/nprot.2012.079
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发表时间:
2012-07-12
期刊:
影响因子:
14.8
通讯作者:
Tracey, William Daniel, Jr.
中科院分区:
文献类型:
--
作者:
Honjo, Ken;Hwang, Richard Y.;Tracey, William Daniel, Jr.
Optogenetics is a powerful tool that enables spatiotemporal control of neuronal activity and circuits in behaving animals. Here, we describe our protocol for optical activation of neurons in Drosophila larvae. As an example, we discuss the use of optogenetics to activate larval nociceptors and nociception behaviors in the third larval instar. We have previously shown that, using spatially-defined GAL4 drivers and potent UAS-channelrhodopsin-2∷YFP transgenic strains developed in our laboratory, it is possible to manipulate neuronal populations in response to illumination by blue light and to test whether activation of defined neural circuits is sufficient to shape behaviors of interest. Although we have only used the protocol described here in larval stages, the procedure can be adapted to study neurons in adult flies – with the caveat that blue light may not sufficiently penetrate the adult cuticle to stimulate neurons deep in the brain. This procedure takes a week to culture optogenetic animals and about an hour per group for the behavioral assays.
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