Fig. 2.

Phylogenetic tree of GRF gene family from sugarcane, sorghum, maize, rice, and Arabidopsis (A), as well as conserved domain (B), conserved motifs (C), and exon/intron organization (D). Phylogenetic tree was constructed using neighbor-joining methods and 1000 bootstrap replicates by MEGA X software. Black solid triangles were the new GRFs found in Saccharum, while bootstrap values lower than 70% were not shown. The GRFs were classified into six Groups (marked with different colored lines). The QLQ and WRC domains were highlighted by yellow and green boxes, respectively. There were 10 different motifs represented by different colored boxes in each of the GRFs. Exons and introns were denoted by yellow boxes and black lines, while untranslated (UTR) regions were represented by green boxes, respectively