Most cry03/Df(3R)Dl-BX12 flies behave rhythmically under constant light conditions at 25oC, approximately one-third of the mutant flies have one periodic component (approximately 24 hours) and the remainder have two periodic components per individual (approximately 22 and 25 hours).
cry03 flies entrained to 12 hour light: 12 hour dark cycles and then exposed to 8 hour delayed light-dark (LD) cycles are able to resynchronise to the new light regime.
cry03 flies that are entrained to 12 hour light: 12 hour dark cycles ( 12:12 LD) and are then shifted to 9:9 or 14:14 LD cycles routinely re-entrain to behave in synchrony with the novel non-24 hour cycles.
cry03, norpAP24 has abnormal locomotor rhythm phenotype
norpA36 cry03 double mutant flies generally fail to resynchronise to the new light regime when they are entrained to 12 hour light: 12 hour dark cycles and then exposed to 8 hour delayed light-dark (LD) cycles; their daily peaks of locomotion continue to occur at the time of the photic transitions that that were in operation before the 8 hour shift. Some of the double mutant flies are "partially entrained"; six says after the photic shift, daily peaks of locomotion fall between the phases expected for continuing entrainment to the old LD regime versus re-entrainment to the new one.
norpA36 cry03 double mutant flies are impaired in their ability to re-entrain with novel non-24 hour light:dark (LD) cycles (compared to single mutant flies) when they are entrained to 12:12 LD and are then shifted to 9:9 or 14:14 LD cycles.
