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Neighbor-joining tree based on the full-length VP2 gene sequences (1755 nucleotides) of FPLVs and CPVs. The GenBank accession numbers for the reference strains used for phylogenetic tree construction are reported in previous papers. Canine and feline strains used for tree constructions were selected from previous studies. 6,12,15 A statistical support was provided by bootstrapping over 1000 replicates. The scale bar indicates the estimated numbers of nucleotide substitutions per site.
