Fig. 3From: RNA-seq of eight different poplar clones reveals conserved up-regulation of gene expression in response to insect herbivoryCo-expression network highlights WRKY transcription factors. From the 885 up-regulated genes, about 30% (258) formed a two-clustered co-expression module. Co-expressed genes are connected by lines, whose widths correspond to the strength of the interaction. Transcription factors (depicted in yellow) and particularly WRKYs (shown in red) are significantly overrepresented (adjusted P = 2.92E 08, Additional file 1: Table S4)Back to article page