Homologous recombination is a force in the evolution of canine distemper virus
Fig 1
Phylogenetic tree analysis of 25 full-length CDV genomes.
The distances were calculated by the ClustalW program with the MEGA 5.0 software package. The ML algorithm was used to generate the tree. Bootstrap values were calculated based on 1000 replicates. The result contains six groups: Asia-1, Asia-2, Asia-3, Europe, America-1, and America-2. Triangle (▲) indicates the out-group strains analyzed in this study.