Figure 3.

Microarray analysis performed with TIGR MeV program: hierarchical clustering. Heat map visualization obtained by hierarchical clustering (HCL). Ratios for each probe relative to the mean value (calculated from the two independent microarray analysis for each condition) were used to rearrange the gene list on the basis of their expression pattern. Probes corresponding to genes with similar regulation trend were placed close to each other. The color-ratio bar indicates intensity of gene up-regulation (red), down-regulation (green) and no change (black).