Figure 1
From: Modeling gene sequences over time in 2009 H1N1 Influenza A Virus populations
Bayesian MCMC phylogenetic tree analysis of 62 NA genes from 2009 H1N1 IAV strains. A maximum credibility clade obtained using the GTR model, the expansion population growth model and a relaxed clock (uncorrelated exponential) is shown. Strains in the tree are shown by name. Main genetic sub-branches are indicated by capital letters (A through D). Node ages are shown in days at the nodes of the tree. The tree is rooted to theirMRCA. Bar at the bottom of the tree show time in days. Strains carrying the H275Y, that confers resistance to Oseltamivir, are shown in red.