Fig. 2

Phylogenetic relationships and structures of 66 MdMATE genes. A. A Phylogenetic tree inferred from full length sequence of MdMATE genes. The number on the nodes are bootstrap value in percentage (1000 replicates). Color of branches represents different groups same with the phylogenetic tree in Fig. 1 (Group I in blue, Group II in orange, Group III in green and Group IV in pink). B. Exon-intron structure of MdMATE genes. The boxes represent exons or UTRs, lines represent introns. C. Motif composition of MdMATE proteins. Different color boxes indicate different motifs. The length of genes or proteins can be estimated using the scale at the bottom