Figure 4

Co-expression network for the phenylpropanoid pathway. See also Additional File 1 for annotations (probability cutoff for "true connections" between gene pairs was 0.80; connections are not drawn to scale), vertices marked in the network: red: positional candidates for resistance trait, green: for growth trait, magenta: for both resistance and growth trait (see text); wide range subgraphs can be followed by blue vertices, important connections are framed and are numbered by order of appearance in the Results and in the Discussion, red: focus on O-methyltransferases, blue: peroxidases; green: dirigent-likes.