Fig. 6.

Co-expression network analysis of transcription factors with secondary wall biosynthetic genes. a-c Networks showing transcription factors co-expressed with 11 lignin biosynthetic genes (a), three cellulose synthase genes (b), and four hemi-cellulose synthase genes. Transcription factor genes are in brown color and wall biosynthetic genes are in green color. Red oval circles transcription factors connected with four or more lignin synthetic genes. Nodes represent genes, and edges represent significant positive co-expression relationships between genes