Fig. 3

The phylogenetic relationship of BPAs and their conserved motifs. a The maximum-likelihood phylogenetic tree of BPA sequences from representative species. Fungal sequences were used as the outgroup (green). Angiosperm BPAs were classified into four clades (I-IV). Red, purple, orange, aqua green or blue labels indicate proteins from monocots, dicots, basal angiosperms, bryophytes and chlorophytes, respectively. b Domain structures and conserved motifs in each clade/group. Motifs are distinguished by different colors as shown in the legend. Domain structures were predicted by scanning against the Pfam database (El-Gebali et al. 2019). Motifs were identified using MEME (Bailey et al. 2009)