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. 2020 Sep 24;9(10):779. doi: 10.3390/pathogens9100779

Figure 1.

Figure 1

Phylogenetic tree based on the S1 nucleotide sequences (from the ATG start codon to the cleavage site of the spike protein). The phylogeny contains a total of 21 infectious bronchitis virus (IBV) strains from different countries around the world. The IBV strain and GenBank accession number are given for each strain. The sequences were aligned using Clustal Omega, and the phylogenetic tree was constructed using the maximum likelihood method available in RAxML with 1000 bootstrap replicates for branch support (the numbers on the nodes represent the bootstrap values). The analyses were constructed using Geneious® v10.2.6 (https://www.geneious.com/).