Intrahost viral diversity among alternative host species infected with CPV-2, CPV-2a, or FPV. The positions and frequencies of all dominant SNVs are displayed. Sequenced viruses include CPV-2 isolates from raccoon dogs (CPV122-124), CPV-2a isolates from a red wolf (CPV307) and a raccoon (RACCPV1), and FPV isolates from an arctic blue fox (BFPV) and raccoon (RACFPV1). Deep-sequenced plasmid (in gray) provides a baseline sequencing error rate. The low-coverage region (LCR) is indicated by gray shading, and positions in this region were omitted from variant calling analyses.