Evolutionary Dynamics and Emergence of Panzootic H5N1 Influenza Viruses
The HA gene (A) and N1 gene (B) trees scaled to time (horizontal axis) generated using the SRD06 codon model and uncorrelated relaxed clock model. Nodes correspond to mean TMRCAs and blue horizontal bars at nodes represent the 95% HPDs of TMRCAs. Red branches indicate Gs/GD lineage H5N1 viruses. Identical phylogenetic trees with virus names are shown in Figure S1. TMRCAs and HPDs for each of the nodes marked with Roman numerals are given in Table 2.