Figure 2From: Characterization of PR-10 genes from eight Betula species and detection of Bet v 1 isoforms in birch pollenGrouping of PR-10 sequences into subfamilies. Clustering of the PR-10 sequences from eight Betula species in a Neighbor Joining tree with Kimura two-parameter distances. The sequences group into seven subfamilies. Bootstraps percentages on the branches indicate support for these groups.Back to article page