Neighbor-joining phylogenetic tree for the fusion gene of NDV isolates.

<p>Phylogenetic analysis was performed using the alignment of the first 1662 nucleotide sequence from the fusion gene coding region of NDV isolate. The K148/08 strain (●) was compared to commercial vaccine strains (○) obtained from the GenBank. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1000 replicates) were shown next to the branches.