Figure 1. (IMAGE) Maximum Academic Press Caption Coexpression network between TFs and purine alkaloid and catechin biosynthesis genes. Credit Beverage Plant Research Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.