Fly brain region, the central complex, is made up of 2800 cells of more than 250 types involved in sensory and motor activities. This study has produced cell type-specific genetic tools to identify molecules active in many of the different cell types, and which can be applied to further functionally dissect the central complex. Here, the team used them to screen neuropeptide production in the different cells and which cell types are involved in sleep and circadian time keeping
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