Fig. 3.

Venn diagrams of the total number of differentially expressed genes (DEGs), selected by ANOVA analysis (p-value < 0.05), showing an interaction between time and treatment. The indicated sets of genes correspond to downregulated (a) and upregulated genes (b) obtained by comparing phenanthrene (PHN)-treated samples with control samples at 30 min, 2, 4, 8 and 24 h. DEGs listed in Additional file 2: Table S3 were selected by statistical analysis using the Bonferroni method with a p-value cut-off of 0.05. Raw transcriptomic data are available in Additional file 2: Table S1