Taxonomic composition of genome sequences as determined by similarity to reference database DNA and protein sequences.

<p>(A) Kingdom-level taxonomic assignment of metagenome sequencing reads using a BLASTX search against the NCBI non-redundant (nr) database (E-value≤0.001). (B) Megan4 tree demonstrating relative taxonomic composition of plume (red) surrounding deep-sea (blue) virus communities as determined by TBLASTX similarity (E-value≤0.001) of sequencing reads to known virus genome sequences in the RefSeq Viral Genomes database.