Fig. 1

Phylogenetic tree of NDV strains based on the nucleotide sequence of the F gene (entire ORF; 1 to 1662 nucleotide). The sequences of the F gene from other regions, published in GenBank, are listed in the Supplementary Table S1. The provisional designations of the genotypes are indicated on the right. The phylogram was generated by the neighbor-joining method with 500 bootstrap replicates using MEGA X software. The sequences of the isolated strains in this study are marked with black dots