Fig. 1
From: Avian influenza virus exhibits distinct evolutionary dynamics in wild birds and poultry
Evolutionary rates of avian influenza virus (AIV) among poultry and wild birds for three internal genes (PA, PB1, PB2). The nucleotide substitution rate per site of each gene was analysed using BEAST. Mean substitution rates and 95 % Bayesian confidence intervals estimated under strict (triangles) and lognormal (circles) molecular clocks are reported. * denotes a lineage of H6 viruses from poultry