Figure 2

Gene expression patterns of A. nidulans wild-type cultures grown in the presence of xylose. (A) Microarray results: the color code (red = expression, green = repression) displays the log₂ (Cy5/Cy3) value for each time point with Cy3 as the reference value (time point = 0, growth on fructose). The data were visualized based on similar expression vectors using Euclidean distance and hierarchical clustering with average linkage clustering and classed into four clusters (C1 to C4). (B, C) Classification of genes from (A) into the respective FunCat categories [19].