Validation of cell cycle marker genes. (a) DNA distributions (2C versus 4C) of exponentially growing cells entrained by a LD 12:12 photoperiod during the time series (b) Expression profiles of early cell cycle genes (CYCH1 and hCDK5; peak expression at t = 2 in the synchronization series (Figure 4 and 6)); and CDKA1 and CDKD1 (peak expression at t = 3 in the synchronization series (Figure 4)). (c) Expression profiles of late cell cycle genes (CDKA2 and CYCB1). Error bars represent standard errors of the mean of two biological replicates.
Huysman et al. Genome Biology 2010 11:R17 doi:10.1186/gb-2010-11-2-r17