Gene to metabolite correlation network for amino acid pathways, the TCA cycle, and the phenylporpanoid and terpenoid network.

<p>Gene-to-metabolite networks in snapdragon petals. ESTs are represented by gray circles and metabolites by white circles. Red lines indicate positive correlations (<i>r</i>>0.95, p-value<0.05) and blue lines negative correlations (r<0.95, p-value<0.05). Numbers in parentheses describe the numbers of nodes (metabolites or ESTs) being correlated to one or more nodes and the total number of nodes in the pathway.