Fig. 3

Hierarchical clustering and analysis of differentially expressed contigs a) Hierarchical clustering of differentially expressed transcripts. Clusters of contigs with highest expression in specific tissues are highlighted and further examined by GO-term enrichment analysis: stems (purple, b), rubber producing, induced stems (green, c) and leaves (yellow, d). GO terms significantly enriched using in the cluster of contigs most highly expressed in stems (b) at a P value of < 0.005, in rubber-producing induced stems (c) at a P value < 0.0001 and in leaves (d) at a P value of < 0.0001 (Fisher’s exact test)