Figure 4From: Evolutionary genomics of the pandemic 2009 H1N1 influenza viruses (pH1N 1v)Rates of nucleotide substitution in H1N1 influenza viruses. Mean substitution rates are showed for each gene segment, with 95% lower and upper HPD values shown as error bars. Blue shows the 2009 H1N1 viruses, while red and green indicate swine and human viruses, respectively.Back to article page