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Table 1 The topological properties of the functional gene co-occurrence networks on four dilution levels and their respective identically sized random networks

From: Specialized metabolic functions of keystone taxa sustain soil microbiome stability

Network indexes Dilution
Dil = 10-1 Dil = 10-4 Dil = 10-7 Dil = 10-10
Empirical Networks
 Total nodes 231 205 184 183
 Total links 1844 1993 736 603
 Metabolic process (positive-negative) 718–712 532–394 269–276 293–277
 Environmental signal responses (positive-negative) 368–4 893–8 188–1
 Average degree (avgK) 17.67 18.39 8.01 7.59
 Average clustering coefficient (avgCC) 0.647 0.662 0.586 0.538
 Average path distance (APD) 4.22 3.39 4.64 4.71
 Modularity (M) 0.679 0.680 0.625 0.579
 Graph density (GD) 0.168 0.171 0.088 0.072
Random Networks
 Average clustering coefficient (avgCC) 0.202 ± 0.008 0.198 ± 0.007 0.113 ± 0.007 0.153 ± 0.014
 Average path distance (APD) 2.499 ± 0.025 2.365 ± 0.021 2.602 ± 0.021 2.729 ± 0.023
 Modularity (M) 0.265 ± 0.004 0.258 ± 0.005 0.232 ± 0.006 0.223 ± 0.005
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