Figure 5.
Light/dark cycle regulation of genes encoding TCA cycle enzymes in P. tricornutum. Colored squares indicate expression levels at time points (hours after light on) T1 = 0.5, T8 = 27 (day 2), T2 = 6, T3 = 10.5, T4 = 15.5, T5 = 16.5 (darkness), and T6 = 20 (darkness), and the data are normalized to time point T7 = 23.5 (darkness). Light and dark periods are indicated in the bar above the squares. The color scale indicates log2-transformed gene expression ratios. Asterisks indicate that the gene did not show significantly differential expression (P < 0.05) at any time point. CISY, Citrate synthase; DHLTA, dihydrolipoamide acetyltransferase; DLDH, dihydrolipoyl dehydrogenase; FUM, fumarase; IDH, isocitrate dehydrogenase; MDH, malate dehydrogenase; OGD, 2-oxoglutarate dehydrogenase E1 component; PDH, pyruvate dehydrogenase; PYC, pyruvate carboxylase; SCSα, succinyl-CoA ligase α-subunit; SDH, succinate dehydrogenase flavoprotein. [See online article for color version of this figure.]