Volume 17, Number 5—May 2011
Research
Molecular Epidemiology of Oropouche Virus, Brazil
Helena Baldez Vasconcelos, Márcio R.T. Nunes, Lívia M.N. Casseb, Valéria L. Carvalho, Eliana V. Pinto da Silva, Mayra Silva, Samir M.M. Casseb, and Pedro F.C. Vasconcelos
Figure 2
Figure 2. Phylogenetic tree based on the complete nucleotide (nt) sequence of the N gene (693 nt) of 96 Oropouche virus (OROV) strains isolated from different hosts, locations, and periods. The main phylogenetic groups are represented by genotypes I (red), II (dark blue), III (green), and IV (light blue). The values above the main nodes represent the dates of emergence of common ancestors, expressed in years before 2009. The arrows indicate the probable date of emergence of genotypes I, II, III, and IV. Numbers in parentheses are value for 95% highest probability density. Scale bar indicates time scale of molecular dating. MRCA, most recent common ancestor.
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