Novel Recombinant Rabbit Hemorrhagic Disease Virus 2 (RHDV2) is Circulating in China within 12 Months after Original RHDV2 Arrival

Figure 2

Maximum-likelihood (ML) phylogenetic trees for the genome regions defined by the recombination analysis. Bootstrap probability values above 70% with 1,000 replicates are indicated at the nodes. (a) ML tree based on the structural part (nucleotides 5,305–7,378; nucleotide substitution model: general time reversible model with a gamma distribution and invariant sites (GTR + G + I)). The group, including the new isolates obtained in this study and GI.2 strain SC2020/0401, are shaded in blue. The unclassified strain JS-NATF2 is marked in red. (b) ML tree based on the nonstructural part (nucleotides 10–5,304; nucleotide substitution model GTR + G + I). The group, including the new isolates obtained in this study and the unclassified strain JS-NATF2, is shaded in blue. The GI.2 strain SC2020/0401 is marked in red. GenBank accession numbers of the sequences are indicated in the taxon names. The European brown hare syndrome virus (EBHSV) strain GD (Z69620) was used as the outgroup to root the tree.

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