Fig. 2From: Characterization and analysis of an infectious bronchitis virus strain isolated from southern China in 2013Phylogenetic tree of IBV strains showing the evolutionary relatedness of genomes and individual gene sequences. Complete genome (a), S1 gene (b), S2gene (c), E gene (d), M gene (e), and N gene (f). The neighbor-joining method was used with a bootstrap of 1000 replicates. A black dot (●) indicates strain GDBack to article page