Diurnal changes in transcript abundance.
(A) Time points at which samples were collected for RNA-seq in the 16 h light (L):8 h dark (D) growth period (LD) and in continuous light (CL).
(B) Average transcripts per million (TPM) were calculated, expressed relative to the maximum, and hierarchically clustered. A total of 4446 genes were significantly differentially expressed (p < 0.05, |log2(fold change)| > 1) at any time point compared with 23h_D or 23h_CL.
(C) The transcript abundance patterns of known diurnally expressed marker genes are shown.
(D) GO overrepresentation analysis (Fisher’s test, Benjamini–Hochberg p < 0.05) was performed, and the top 15 overrepresented categories are indicated.