Figure 3.

Genomic structure of RsMYB1 alleles and phylogenetic tree of RsMYB1 proteins from red and white radish cultivars and R2R3 MYB proteins from other plants. (A) Schematic diagram of the genomic structure of RsMYB1. The predicted protein encoded by each mature mRNA is indicated below with their functional domains. White boxes, exons; black lines, introns. The 4 bp insertion site in RsMYB1^Short is indicated by a triangle. Premature termination codon (PTC) is indicated by a circle. (B) Multiple protein sequence alignment of the R2 and R3 domains across R2R3 MYB proteins from other plants. The conserved residues of the DNEI and ANDV motifs are shown in the red and blue boxes, respectively. Inverted blue triangles indicate the conserved residues forming the inner hydrophobic core of the R2 and R3 domains.