Figure 6

Non-synonymous (K_A), synonymous (K_S), and K_A/K_S substitution values of S. tetrandra. (a) K_A, (b) K_S, and (d) K_A/K_S substitution values. (c) Venn diagram of protein-coding genes with K_A = 0 and K_S = 0. The genes highlighted in red were under positive selection during the Spinacia evolution.