Figure 2

Unrooted nucleotide sequence based phylogenetic trees showing the clustering of avian orthoreoviruses based on the λA, λB, λC, μA, μB, μNS, σC, σA, σB and σNS protein coding genes of viruses available from GenBank.
Phylogenetic calculations were carried out using the maximum-likelihood method applying the best-fit models calculated for each gene. The scale bar is proportional to the genetic distance.