Fig. 3.

Phylogenetic analysis of genomic nucleotide sequences of the four TGEV strains and PRCV-ISU-1 with the reference TGEV genomes available in GenBank, and a Feline Coronavirus outgroup. The tree is based on muscle alignment of whole genomes. The tree search was conduced with TNT (Goloboff et al., 2005) with equally weighted parsimony counting gaps as a fifth state. Tree search was conducted using new technology parameters until a stable consensus was discovered. This search procedure produced a single tree of 7360 steps. Bootstrap values for 1000 resampling replicates are shown at nodes.