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. 2019 Jan 24;7:e6353. doi: 10.7717/peerj.6353

Figure 1. Phylogenetic tree of the R2R3-MYB, R1R2R3-MYB, and 4R-MYB subfamilies of jujube and Arabidopsis and conserved motif and gene structure analysis of the R2R3-MYB and R1R2R3-MYB subfamily proteins of jujube.

Figure 1

(A) Phylogenetic tree of the MYB proteins of jujube and Arabidopsis. The sequences of the 171 MYB superfamily proteins of jujube and 132 Arabidopsis R2R3-MYB, R1R2R3-MYB, and 4R-MYB proteins were aligned by ClustalW, and the phylogenetic tree was constructed using MEGA 6. The small white triangles represent the 171 jujube MYB proteins, and the small black triangles represent the 132 Arabidopsis MYB proteins. The names of each group are marked by English letters with Arabic numbers. (B) Distributions of conserved motifs in ZjMYB genes. The motifs of numbers 1–15 are indicated in different colored boxes. The sequence information of the motifs is provided in Table S2. (C) The exon–intron structure of jujube MYB genes. The yellow boxes and black lines indicate exons and introns, respectively. The green boxes at the two ends of the sequences indicate upstream and downstream regions, respectively. The MYB domains are highlighted by red boxes.