Fig. 2

Function enrichment and Clustering analysis. a Function enrichment of the upregulated or downregulated (≥ twofold, probability ≥ 0.8) genes in ΔPoset2 compared with that of WT after the strains were cultivated in the glucose medium (up) or in the cellulose medium (down). The function enrichment analysis was conducted in Blast2GO [68]. B, C, and M indicate the GO category. B, biological process; C, cellular component; M, molecular function. Green bars, function enrichment analysis of downregulated genes; red bars, function enrichment analysis of the upregulated genes. Blue stars indicate the same category of enrichment in both media. b Clustering analysis of genes encoding the secreted proteins by using Genesis. The gradient color bar code at the top indicates a value at log2 fold change of expression in the treatment case to the expression in the control case. Blue dots, genes encoding hemicellulase; pink dots, genes encoding cellulose; yellow triangle, genes encoding others