A Novel Isolate with Deletion in GP3 Gene of Porcine Reproductive and Respiratory Syndrome Virus from Mid-Eastern China
Figure 2
Phylogenetic analysis based on nucleotide sequences of the full-length genome (a), ORF2 (b), and ORF5 (c) of 30 fully sequenced PRRSV isolates. The evolutionary history was inferred using the Neighbor-Joining method. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1000 replicates) was shown next to the branches. The evolutionary distances were computed using the Jukes-Cantor method and were in the units of the number of base substitutions per site. Evolutionary analyses were conducted in MEGA5.
