Fig. 2From: Learning Microbial Community Structures with Supervised and Unsupervised Non-negative Matrix FactorizationBiosynthesis of 12-, 14- and 16-membered macrolides. Reactions in red ellipses are those appearing in herbivores’ features. Reactions in blue rectangles are those appearing in carnivores’ features. Figure downloaded from KEGG [44], red ellipses and blue rectangles added by the authorsBack to article page