Fig. 4From: Genome-wide identification and expression analysis of the R2R3-MYB gene family in tobacco (Nicotiana tabacum L.)Conserved motifs for NtR2R3-MYB proteins in Nicotiana tabacum. Different motifs are showed with different colored boxes and numbers (1–20). The gray lines represent the non-conserved sequences. The lengths of motifs can be estimated using the scale at the bottomBack to article page