Table 1. Number of Peptides Present in One Condition and Significant for Spectral Count and Spectral Index Using Different Thresholds.

	unanalyzed peptides	spectral count p-value < 0.001	spectral count p-value < 0.01	spectral count p-value < 0.05	spectral count p-value < 0.1	total peptides
only present at daytime	0	0	0	0	0	129
only present at nighttime	0	0	0	0	0	78
unanalyzed peptides spectral index	0	1	0	1	24	26
spectral index p-value < 0.001	19	4	8	6	26	63
spectral index p-value < 0.01	0	1	2	2	9	14
spectral index p-value < 0.05	0	1	4	2	8	15
spectral index p-value < 0.1	0	0	1	0	4	5
nonsignificant peptides	1	3	6	3	105	118
total peptides	20	10	21	14	176	448