Molecular Characterization of Newcastle Disease Virus from Backyard Poultry Farms and Live Bird Markets in Kenya

Figure 3

Phylogenetic tree of nucleotide sequence of the complete fusion (F) gene of Newcastle disease virus (NDV) obtained in this study (marked ) and reference sequences from GenBank. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1000 replicates) is shown next to the branches (only >50% is shown). The evolutionary history was inferred by using the maximum likelihood method based on the Tamura Nei model [31]. The gamma correction for rate heterogeneity was 0.4141. The analysis involved 109 nucleotide sequences. The tree is rooted using the NDV sequence belonging to Class I. There were a total of 1662 positions in the final dataset. The analyses were conducted in MEGA 6.