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. 2011 Mar 9;6(3):e17288. doi: 10.1371/journal.pone.0017288

Table 2. Summary of metagenomes by type and biome used in this study.

Biome Number of viral metagenomes Number of microbial metagenomes
Aquatic 1 58
Terrestrial 9 6
Host-associated (total) 65 63
Host-associated (human) 62 50
Total 75 127

The metagenomes were previously published and available through NCBI. The metagenomes were not targeted to a single loci and the mean read length was above 150 bp after trimming and filtering.