Additional file 4 of Beneficial mutualistic fungus Suillus luteus provided excellent buffering insurance in Scots pine defense responses under pathogen challenge at transcriptome level

Additional file 4. Hierarchical clustering of DEGs using log2(1 + TMM-normalized CPM). CPM: Counts per million. CPM = raw count of each gene/lib.size of each sample. We keep genes that are expressed at least 1 CPM in at least 3 libraries in differential gene expression analysis using EdgeR. Ctr: control seedlings without any inoculum. Ha: pathogen-infected seedlings. Sl: Suillus luteus -infected seedlings. SlHa: co-infected seedlings with both S. luteus and H.annosum . ‘ + ’ refers to upregulated, while ‘-’ refers to downregulation. Ha.Sl.SlHa: + + + refers to DEGs that were upregulated in all treatments compared to Ctr. Ha.Sl: + + refers to DEGs that were upregulated both in Ha and in Sl. Ha.SlHa: +—refers to DEGs that were upregulated in Ha but downregulated in SlHa. The value on the scale bar refers to log2(1 + TMM-normalized CPM).