Figure 1.

Microarray analysis of gene expression changes after UV-B exposure. Scatter plot comparing ratios of signal values from two replicate microarray hybridizations with Cy3-dUTP-labeled and Cy5-dUTP-labeled mRNA from adult leaves of b, pl plants after 8 h exposure under UV-B lamps and under no UV-B. Data from images of dye-swapping experiments were plotted as the mean intensity after normalization of ESTs spotted in triplicate.