Fig. 1

Entrainment of the locomotor rhythm to LD12:12 in DsRed2^RNAi (a), Gb’cry1^RNAi (b), Gb’cry2^RNAi (c), and Gb’cry1^RNAi/Gb’cry2^RNAi crickets (Gryllus bimaculatus) (d-i). Light cycles were advanced or delayed by 6 h on the day indicated by an arrowhead on the left side of the actograms. White and black bars above the actograms indicate light (white) and dark (black) cycles. Yellow arrows indicate the light induced activity at light-on after a 6 h phase advance of the light cycle. Transient cycles were shorter in Gb’cry1^RNAi and Gb’cry2^RNAi crickets than in the control (DsRed2^RNAi) crickets, but were longer in Gb’cry1^RNAi/Gb’cry2^RNAi crickets. Some of the Gb’cry1^RNAi/Gb’cry2^RNAi crickets (e, h, i) apparently lost entrainability