Fig. 3From: Transition of microbial community structures after development of membrane fouling in membrane bioreactors (MBRs)Structural changes in the microbial communities at the class and genus levels throughout the operation. a, b Analysis at the class level in Reactors 1 and 2, respectively. c, d Analysis at the genus level in Reactors 1 and 2, respectively. The phylogenetic groups (class or genus) are indicated by color and their taxonomies are shown to the right of the graphs. Phylogenetic categories were assigned using QIIME softwareBack to article page