Fig. 3: Relationships between soil viruses and their hosts.
From: A global atlas of soil viruses reveals unexplored biodiversity and potential biogeochemical impacts

a, A cumulative distribution function plot showing the ratio of CRISPR spacer hits to viral sequences per sample. The inset shows a zoomed portion of the plot from 0 to 0.08 along the y axis. b, A phylogenetic tree of bacterial hosts at the order level. Phylum level taxonomy is shown in the inner circle, and the abundance of CRISPR spacer hits to each order is shown in the outer circle. Two archaeal orders (Nitrososphaerales and Halobacteriales) of hosts are not shown. c, The correlation between the frequency of CRISPR hits (defined as total CRISPR spacer hits per microbial order) and environmental parameters from SoilGrids250m. Colour denotes Spearman’s rho. Only host orders present in more than five samples are shown in the heatmap.