Figure 4.

Hierarchical clustering of 23,293 genes expressed in different functional and morphological structures of L. bicolor. Each row represents a gene model. The heatmap shows the gene expression level normalized to the row maximum. In total, 3 identified gene groups were differentially expressed throughout the different experimental conditions and 11 clusters were identified based on specific expression profiles. Cluster 5 groups genes with a maximum expression level in mature mycorrhiza and can be divided into subclusters A–E based on their co-regulation under different conditions. Genes with functions in N transport, transcript regulation, CAZymes and SSPs are highlighted.