PHYTOPLANKTON VIRUSES DATABASE IS THIN. “Putative complete genomes of ssDNA viruses were assembled, almost doubling the number of ssDNA viral genomes in databases. These comprised 129 genetically distinct groups, each represented by at least one complete genome that had no recognizable similarity to each other or to other virus sequences.” The tip of the iceberg. Our oceans are almost as unknown to us as Mars. ”
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http://www.ncbi.nlm.nih.gov/m/pubmed/23842650/