Table 2.

Reduced Pka-C1 expression partially rescues circadian behavioral rhythms

	Age (days)	5–8	40	53–55	69–71	79–80
Female
wt	n	80	89	140	97	101
	Period (h)	24.07 ± 0.03	24.72 ± 0.06	25.08 ± 0.04	24.76 ± 0.06	24.89 ± 0.12
	FFT	0.055 ± 0.003	0.048 ± 0.003	0.054 ± 0.002	0.037 ± 0.003	0.045 ± 0.004
	AR (%)	2.5	7.9	15.0	38.1	59.4
	Shifting (%)	5.0	40.5	46.4	37.1	20.8
Pka-C1BG/+	n	79	93	125	88	79
	Period (h)	23.97 ± 0.03	24.49 ± 0.07	25.02 ± 0.04	24.75 ± 0.08	24.61 ± 0.09
	FFT	0.041 ± 0.003	0.044 ± 0.002	0.063 ± 0.003	0.040 ± 0.003	0.035 ± 0.004
	AR (%)	3.8	6.5	6.4	26.1	44.3
	Shifting (%)	3.8	24.7	24.0	28.4	22.8
Male
wt	n	80	87	114	84	97
	Period (h)	23.77 ± 0.02	24.52 ± 0.05	24.67 ± 0.04	24.85 ± 0.11	25.24 ± 0.10
	FFT	0.105 ± 0.005	0.061 ± 0.003	0.059 ± 0.002	0.052 ± 0.003	0.042 ± 0.003
	AR (%)	1.3	4.6	2.6	21.4	40.2
	Shifting (%)	1.3	13.8	23.7	23.8	19.6
Pka-C1BG/+	n	79	86	130	77	91
	Period (h)	23.79 ± 0.02	24.22 ± 0.06	24.88 ± 0.05	24.92 ± 0.09	24.80 ± 0.10
	FFT	0.103 ± 0.005	0.052 ± 0.002	0.063 ± 0.003	0.051 ± 0.004	0.057 ± 0.003
	AR (%)	1.3	2.3	1.5	14.3	18.7
	Shifting (%)	0	7.0	9.2	15.6	14.3

Siblings from the seven times outcrossed Pka-C1^BG02142 strain were used as wild-type control for the mutants. Data are presented as average ± SEM. Flies with an FFT value <0.01 were counted as arrhythmic (AR). For the rhythmic flies, circadian period was determined by chi-square periodogram.