Predicted circovirus-like replicase sequences were searched against the NCBI non-redundant protein database (BLASTx, E value 10 22 ). Aligning sequences were retrieved and consolidated using CD-HIT into a set of representative sequences [37] (CD-HIT version 4.5.4; parameters: -c 0.7). These sequences were aligned in Geneious [38] as a global alignment with free end gaps and trimmed to the 47 amino acid overlap shared by the two recovered sequences. A neighbor-joining tree was generated by Geneious Tree Builder [38] .