Genomic fragment (BAC-PAC clone C322-08N23) which contains cyc. A EGFP tag has been inserted at the N-terminal end of the cyc open reading frame.
cycEGFP partially rescues cyc01
cycT:Avic\GFP-EGFP significantly rescues circadian rhythms (84% of flies show rhythmicity with a 25.9hr period) in cyc01/cyc01 flies under dark conditions.