Fig. 3
From: The complete mitochondrial genome of Sinojackia microcarpa: evolutionary insights and gene transfer
The Non-synonymous (Ka)/synonymous (Ks) ratio values for 23 mitochondrial protein-coding genes of Sinojackia microcarpa compared with the mitochondrial genome of Stewartia sinensis Ka represents the non-synonymous substitution rate, Ks represents the synonymous substitution rate, and Ka/Ks indicates the selective pressure acting on each gene