Fig. 8

Heatmap Representing the Co-expression Patterns among the Potentially Light-regulated TFs and TRs in ChlamyNET. High positive correlation between the corresponding gene profiles is represented by red/yellow colours, low negative correlation is represented by blue/purple colours. Three different groups are apparent. The first group can be divided into two subgroups. We can observe negative correlations between genes in the subgroup 1b and genes in the second group such as between CrLHY and CrTOC1 which indicates that these two genes may be true orthologs of the circadian clock Arabidopsis genes LHY/CCA1 and TOC1. Very low negative correlations are observed between genes in Group 1 and genes in Group 3. Genes coding for different 26S proteasome and signalosome subunits such as CrRPN7 and CrCOP9 can be found in. Group 3. Their putative Arabidopsis orthologs have been described to degrade proteins involved in light response that exhibit a high sequence similarity with those coded by genes in Group 1