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Fig. 2 | BMC Biology

Fig. 2

From: Charting the diversity of uncultured viruses of Archaea and Bacteria

Fig. 2

Phylogenomic reconstruction of 6646 viral genomic sequences reveals major lineages of uncultured prokaryotic viruses. The tree was built through neighbor-joining based on Dice distances calculated between viral genomic sequences from both NCBI RefSeq and those reconstructed from metagenomes, fosmid libraries, single virus genomes, and prophages integrated into prokaryote genomes. Tree was midpoint rooted. Branch lengths were omitted to better display tree topology. Each of the 68 level-1 GL-UVAB lineages were highlighted by black colored branches and with their defining nodes indicated by blue dots. Numeric identifiers for the lineages are displayed in the innermost ring within gray strips. The outermost ring depicts the ICTV family-level classification assignments of RefSeq viral genomes that were included in the tree. For reference, a single representative from each ICTV genus was labeled and their Taxonomic classification is shown in parentheses

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