Fig. 3.
Phylogenetic tree of the virus polyprotein, including the RdRp, of representatives of the vertebrate RNA virus family the Caliciviridae. Viruses identified in this study are denoted with a filled circle and in bold. The most divergent calicivirus, Atlantic Salmon calicivirus, was used as outgroup to root the tree. Bootstrap values >70% are shown for key nodes. The scale bar represents the number of amino acid substitutions per site