Fig. 5

Heat maps illustrating patterns of gene coexpression. Genes encoding (a) key phenolic acid pathway enzymes, transcription factors and members of the SmMAPK family, b enzymes involved in the synthesis of tanshinones, transcription factors and members of the SmMAPK family. Transcript abundance was estimated in the roots, leaves and flowers of S. miltiorrhiza plants, some of which were exposed to salicylic acid, methyl jasmonate or yeast extract. Pearson correlation coefficient (PCC) values were calculated for these genes. Blue: low abundance, red: high abundance