Dendrogram showing hierarchical clustering of conditions and/or mutant strains based on gene expression profiles. Values at branches are approximately unbiased (AU) percentage values (bottom) and bootstrap (BP) percentage values (top). BP values indicate the percentage of bootstrap replicates in which a given cluster appears. Leaf numbers correspond to the indices of the conditions/mutant strains described in Table 1. Coloured boxes indicate branches in the dendrogram of conditions/mutant strains having in common RCV growth medium (green), the DE442 strain (orange), and culture growth phase (yellow and blue versus red).