Free-running circadian locomotor rhythm phenotypes in DD.

aN: number of flies; R: rhythmic; WR: weakly rhythmic; AR, arrhythmic.bχ2 periodogram analysis was performed for each fly using the FassX software to determine the free-running period, tau. Power, a measure of rhythmicity, corresponds to peak – significance value (at p = 0.05).cThree controls strains, one for each of the dysc mutant alleles, produced comparable results, and pooled data are presented.dnd: not determined.epr9: Precise excision line derived from s168.