Figure 1.
Phylogenetic analysis and geographic distribution of USUV strains detected in dead blackbirds in the Netherlands. (a) Maximum likelihood phylogeny of USUV complete coding sequences. PhyCLIP’s cluster designation is indicated in colour and asterisk indicate bootstrap scores ≥80%. (b) Geographic distribution of USUV clusters detected in dead blackbirds in the Netherlands. Dots indicate the center of municipality at which USUV positive dead birds were collected. In municipalities where more than one dead blackbird were collected, dots are dispersed and the municipality is colored according to year of most recent death. Scale bar represents units of substitutions per site.