Fig. 5

Transcriptional responses of CAZyme genes in soil fungi to tree species and soil layers. a The bar graph displays the aggregated sum of transcripts (TPM) mapped to the CAZyme genes expressed in the OS and OM layers of the Abies-, Picea-, or Quercus-dominated forests. Only the most highly transcribed CAZyme gene families are shown. Color codes for gene families are shown on the right panel. b Bar plots and heat map depicting the abundance of CAZyme transcripts (TPM) ranked by potential substrates according to tree species (Abies, Picea, Quercus) and soil layers (OM and OS). The bar plots show the proportion (%) of transcripts acting on FCW, PCW, or other substrates. The heat map shows the proportion (%) of transcripts for FCW and PCW CAZyme transcripts. Values are in TPM and the color codes range from red (higher expression) to light blue (lower expression). Abbreviations: BCW, bacterial cell walls; FCW, fungal cell walls; PCW, plant cell walls. ‘Auxilliary Activity’ corresponds to CAZyme genes involved in lignin and polyphenol degradation; ‘Storage’ corresponds to CAZyme genes related to the biosynthesis of storage compounds, such as glycogen