Fig. 5.

Hierarchical agglomerative clustering based on the Bray-Curtis similarity matrix of soil virus communities. The complete linkage mode was used, and simprof was performed to identify two clusters and five distinct subgroups which are indicated with dashed lines. For each subgroup, a pie chart shows the relative abundance of the five virus families. The individual color for each family is shown on top. A color gradient indicates the relative proportion of calcium (% Ca) for each soil samples. Minimum and maximum values (in %) are shown with the gradient at the bottom