Summary of the transcriptome and proteome diel timecourse datasets.

The Prochlorococcus MED4 genome has 1955 predicted protein-coding genes. Construction of an abundance timecourse for a gene product required sufficient data (generally ≥8 timepoints) after quality filtering (see Methods). The estimated number of significantly cycling timecourses is higher than the number for which specific cycling parameters (phase and amplitude) could be calculated because the former incorporates calculations of the sensitivity and specificity of the cycling analysis (see Methods and Table S1).