Fig. 1From: Phylogenetic assessment reveals continuous evolution and circulation of pigeon-derived virulent avian avulaviruses 1 in Eastern Europe, Asia, and AfricaPhylogenetic analysis based on the complete nucleotide sequence of the fusion gene of viruses representing Newcastle disease viruses of class II. Only bootstrap values greater or equal to 60% are visualized. There were a total of 1650 positions in the final dataset. The strains sequenced in this study are highlighted in bold font and have a circle symbol in front the taxa name. Provisional designation of genotypes is indicated on the rightBack to article page