Figure 4.

The AtMegaCluster Displays Hierarchical Clustering of 444 Experiments and 22,810 Genes in Arabidopsis.

Experiments, represented on the horizontal axis, were grouped into eight clusters according to the fold change values of genes and have been named according to the classification of the majority of experiments in that cluster. Genes, represented on the vertical axis, were grouped into five clusters according to their fold change values and have been named according to the functional category of the majority of genes in that cluster. The ATHK1 gene is represented by a plus sign (+). Induced fold changes are in magenta; repressed fold changes are in green.