Fig. 8

Structure and domain evolution of plant SUS. a Structure of AtSUS1 from A.thaliana (PDB code 3S27) [41]. Structural domains are highlighted in different colors: the CTD is colored blue; the EPBD is cyan; the linker between the CTD and EPBD is green, the GT-B domains are wheat, and the C-terminal extension is pink; b The overall ω values of CTD (blue), EPBD (cyan), and GT-B (wheat) domains of three SUS gene subfamilies in monocots and dicots. The top and bottom edges of the box indicate the upper and lower quartiles, the central black line show median value and the diamond show mean value. The whiskers extend 1.5 times of the interquartile range beyond the edges of the box. Different letters above the boxes indicate significant differences (one way-ANOVA and Dunnett’s T3 test; P < 0.05)