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Figure 1 | Veterinary Research

Figure 1

From: Characterization of two Austrian porcine reproductive and respiratory syndrome virus (PRRSV) field isolates reveals relationship to East Asian strains

Figure 1

Phylogenetic analysis based on nucleotide sequences of full-length genomes of 41 PRRSV-1 strains and PRRSV-2 prototype VR2332 as an out-group. The PRRSV strains presented in this study are marked in red and the associated sub-tree is highlighted with a box. The tree was constructed using the neighbour joining method with the numbers at the nodes representing bootstrap values in % of 1000 replicates. Scale bar: number of substitutions per site.

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