Figure 2From: Characterization of a biogas-producing microbial community by short-read next generation DNA sequencingFunctional hierarchical classification analysis. Legend: The graph shows the abundances of COGs in % using best hits of Subsystems protein database. The most abundant functions are related to biosynthesis, bioenergetics and housekeeping. The numbers on the top of the columns indicate filtered hits, for filtration rules see Material and Methods, data normalization and analysis sectionBack to article page