Fig. 4

Co-occurrence networks of parasitic orders in the inflow and denitrification bioreactor. Networks showing correlations derived from co-occurrence network inferences for the inflow (INF) and denitrification bioreactor (DNF) at N=10 WWTP locations, based on metagenomic (first row) and metatranscriptomic (second row) data. Only associations that involve parasites are shown. Nodes represent genera grouped at the order level and trait level (red nodes: parasitic taxa; yellow nodes: free-living taxa), with node size proportional to the total number of reads for each order. Edges represent correlations between taxa (blue lines: positive correlations; red lines: negative correlations), with line thickness proportional to the number of genera per order involved. Abbreviations for archaea: E Euryarchaeota, O others. Abbreviations for bacteria: A Actinobacteria, B Bacteroidetes, C Chloroflexi, F Firmicutes, O Others, Pl Planctomycetes, Pr Proteobacteria, T Tenericutes, V Verrucomicrobia. Abbreviations for Proteobacteria: Alpha Alphaproteobacteria, Beta Betaproteobacteria, Gamma Gammaproteobacteria, Delta Deltaproteobacteria, O others. Abbreviations: Fungi: A Ascomycota, B Basidiomycota, O others. Abbreviations for protists: Ce Cercozoa (*including Rosculus), Ci Ciliophora, Co Conosa, Db Discoba, Di Discosea, Ms Mesomycetozoa, Mt Metamonada, O Others, S Stramenopiles, T Tubulinea