Figure 2From: Global transcription profiling reveals differential responses to chronic nitrogen stress and putative nitrogen regulatory components in ArabidopsisExpression patterns of genes in each cluster. Relative expression levels of genes in each cluster were presented. The warmer the colors are, the higher the expression levels are. 3 mM = the sufficient-N condition; 1 mM = the limiting-N condition; 0.3 mM = the stress-N condition; 2 hr = 2 hr induction; 24 hr = 24 hr induction. Each line represents one gene and the gene list is provided in Additional file 7.Back to article page