Fig. 4

Co-expression of LAC/PRX genes with secondary cell wall (SCW) biosynthesis-related genes. a exNet was used to analyse the co-expression of the eight LAC/PRX genes from subnetwork 2 (Fig. 2, Additional file 1: Table S3) specifically with 59 genes involved in the biosynthesis of cellulose, hemicellulose and lignin (Additional file 1: Table S4). exImage allowed the visualization of their detailed absolute expression profiles (TPM) across Eucalyptus tissues. b Co-expression of the eight candidate genes, with 14 TFs that are putative orthologs of SCW-biosynthesis regulators in Arabidopsis and two TFs of unknown function in Eucalyptus (Additional file 1: Table S4) (EucGenIE.org); c Co-expression of four putative orthologs of the eight Eucalyptus LAC/PRX genes (AtLAC4, AtLAC5, AtLAC17 and AtPRX64), with eight TFs involved in the regulation of SCW biosynthesis and one TF of unknown function in Arabidopsis (AtGenIE.org); d Co-expression of seven putative orthologs of the eight Eucalyptus LAC/PRX genes in Populus, with 14 TF homologs of Arabidopsis SCW regulators (PopGenIE.org). The best diamond BLAST hit option available in the GeneList tool allowed the identification of the putative orthologs of the eight candidate genes in the different GenIE domains (from EucGenIE to AtGenIE and PopGenIE), and exNet was used to generate and visualize the co-expression networks