Fig. 1
From: Transfer of energy pathway genes in microbial enhanced biological phosphorus removal communities
Directed network of gene transfer for Butanoate metabolism and Propanoate metabolism. Directed transfer of enzymes involved in KEGG a) Butanoate metabolism and b) Propanoate metabolism for the Denmark (DK), Australia (AU) and United States (USA) EBPR communities. Taxonomic groups are nodes, and direction of transfer from donor to recipient is indicated by arrows. See Additional file 18 for taxonomic abbreviation guide