Fig. 2

Cluster analysis of the salt stress microarray time series. A Four major clusters of co-regulated transcripts were obtained. B Distribution of different transcript types over the different clusters (see Additional file 1: Table S2 for the precise values and assignments). C Functional enrichment analysis of proteins encoded by differentially regulated mRNAs according to KEGG Orthology (KO) terms for each cluster. Heatmap coloring represents the enrichment p-values (y axis = enriched KO terms, x axis = genes, see Additional file 1: Table S3 for detailed information)