(A) Sequence alignment of McMYB12 proteins and R2R3 MYB regulators from other species. The position of the R2R3-type MYB domain is indicated by cyan lines, while motif 1, involved in the interaction with bHLH proteins, and the C1 and C3 motifs are highlighted by red lines. Amino acids identical in all sequences are shaded black. (B) Phylogenetic analysis of McMYB12a and McMYB12b and MYB genes from other species involved in the regulation of PAs biosynthesis. The scale bar represents the number of substitutions per site and the numbers next to the nodes are bootstrap values from 1,000 replicates. Phylogenic and molecular evolutionary analysis was conducted using MEGA version 5.1. The GenBank database accession numbers of the proteins are as follows: AmROSEA1, ABB83826; AtMYB114, AT1G66380; AmROSEA2, ABB83827; AtMYB5, NP187963; AtMYB5, NM112200; AtTT2, Q9FJA2; PsMYB2, KJ466975; PmMYB5, XM008222439; VvMYB5a, AAS68190; VvMYB5b, NM001280925; VvMYBPA1, CAJ90831; VvMYBPA2, EU919682; MdMYB1, ABK58136; MdMYB3, HM122621; MdMYB8, DQ267899; MdMYB9, DQ267900; MdMYB10, ACQ45201; MdMYB11, DQ074463; MdMYB12, HM122616; MdMYB16, HM122617; MdMYB17, HM122618; MdMYB22, DQ074470; MdMYB23, DQ074471; MdMYB110a, JN711473; MdMYB111, HM122615; MdMYB121, KC834015; McMYB12a, KJ020112; McMYB12b, KJ020111.