Figure 3From: Towards Systems Biology of Heterosis: A Hypothesis about Molecular Network Structure Applied for the Arabidopsis MetabolomeSchematic representation of molecular networks (a) with synthesis (black arrows) and regulatory functions (colored arrows), as homomorphic to the association network model (b), representing a two-layer feed-forward Steinbuch matrix. Associated input-output pairs are depicted in corresponding colors (blue and red). Black arrows depict regulatory interactions between specific input and output nodes.Back to article page