Fig. 6.

Maximum-likelihood phylogenetic analysis based on the divergent amino acid sequences of RdRp in the present study and the members of the picorna-like virus supergroup presented in a previous study (Koonin et al., 2008). The best blastp hits of the RdRp sequences in this study and five RdRp representative sequences from the family Hepeviridae were also included in the alignment. The six main clades identified and abbreviations of viruses are labelled according to their previous designations (Koonin et al., 2008). Bootstrap values >50 are indicated on the tree.