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Cryptochrome and the visual system define four combinations of light inputs to the clock neurons in the Drosophila larval brain
| Light inputs | Neuronal group |
|||
|---|---|---|---|---|
| PDF+ LN | 5th LN | DN1 | DN2 | |
| CRY | +a | −b | + | via PDF |
| Visual system | + | + | via PDF | via PDF |
a+ indicates that these neurons can sense light via the corresponding input pathway without any intermediate neuronal connection.
bThis neuron can also perceive light indirectly via CRY+ neurons, in a PDF-independent fashion.
