Fig. 3.

The gene structures and conserved motifs of PtrMATE family members. (A) Exons and introns of PtrMATE genes are plotted using green boxes and black lines, respectively. The blue boxes indicate upstream/downstream sequences. (B) Protein motifs of the PtrMATE family. The motifs of Populus MATE proteins are shown as colored boxes, each motif is represented as a number in the colored box. The genes are listed according to the order of subfamily I to III from the phylogenetic tree and different subfamilies are highlighted with lines.