Figure 4.

Gene structures and motif locations of switchgrass TCP genes. (a) Three clades were classified according to an unrooted NJ tree, which were constructed using PvTCP peptides. (b) Exon/intron arrangements of the PvTCP gene. Exons, introns, and untranslated region (UTR) were represented by green boxes, black lines, and blue boxes, respectively. Nucleic acid lengths are indicated by the scale at the bottom; bp = base pair. (c) Schematic representation of conserved motifs in the PvTCP proteins predicted by the MEME program. Each motif is represented by a number in the colored box. The black lines represented the nonconserved sequences. Lengths of motifs for each PvTCP protein were displayed proportionally. aa = amino acid.