Fig. 2.

Heatmap and Bootscan analysis. Heatmap showing the relationship of IBV isolate NR725/16 on the basis of pairwise distances for each gene in relation to other viruses representing different subclades. The highest related genes have a deep blue color that converts to light blue, light yellow and deep yellow with increasing distance (A). The Bootscan analysis showing different recombination events within NR725/16 genome compared to viruses suggested by phylogenetic analysis of different genes, with arrangement of the IBV genome given (B).