| use of nucleotide composition analysis to infer hosts for three novel picorna-like viruses. | nearly complete genome sequences of three novel rna viruses were acquired from the stool of an afghan child. phylogenetic analysis indicated that these viruses belong to the picorna-like virus superfamily. because of their unique genomic organization and deep phylogenetic roots, we propose these viruses, provisionally named calhevirus, tetnovirus-1, and tetnovirus-2, as prototypes of new viral families. a newly developed nucleotide composition analysis (nca) method was used to compare mononucleo ... | 2010 | 20668077 |