Fig. 5.

Common bean rhizobacterial co-occurrence networks in agricultural and native soils. a Co-occurrence network of common bean rhizosphere samples in agricultural soil. Cluster 1 was composed of bacterial taxa from several classes of the Proteobacteria phylum. Cluster 2 contained exclusively bacterial taxa from the Chitinophagaceae family. Cluster 3 included actinobacterial taxa and one Bacillus, and cluster 4 was composed of the genus Rhizobium. b Co-occurrence network of common bean rhizosphere samples in native soil. From the three main clusters identified, two were highly abundant in nodes from the Proteobacteria phylum (1 and 3) which held negative connections to cluster 2, mainly composed of phyla Acidobacteria and Verrucomicrobia. Positive interactions are depicted as green edges and the negative interactions are depicted as red edges. Color code of most abundant nodes: Proteobacteria, blue; Actinobacteria, red; Bacteroidetes, green; Acidobacteria, yellow; Planctomycetes, cyan