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Fig. 5 | Microbiome

Fig. 5

From: Enhanced mutualistic symbiosis between soil phages and bacteria with elevated chromium-induced environmental stress

Fig. 5

Lysogen occurrence within the soil virome along Cr concentration gradients. A Co-occurrence networks of viral contigs in seven soil samples. Nodes (circles) represent viral contigs. Orange represent the contigs containing lysogenic phage indicators; dark blue nodes are all other viral contigs. Shared edges (lines) between nodes indicate a correlation, and the more edges in a node indicate a closer genetic relationship between contigs. The values to the right of each sample name are the relative abundances of lysogenic phages within the corresponding sample. As the distance between sampling location and source of contamination grew, the relative abundance of lysogenic phages decreased in the lightly polluted LZ site. In the heavily polluted ZY site, an increasing trend from sample Z1 to Z2 was observed, which then showed a decreasing trend between Z2 and Z4. The relative abundance of phage integrase genes found in bacteria (B) and inducible lysogenic fractions (C) at the sampling locations consistently increased in tandem with Cr concentrations

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