Fig. 2From: Towards the plastome evolution and phylogeny of Cycas L. (Cycadaceae): molecular-morphology discordance and gene tree space analysisGenetic variation and substitution rates among plastid protein-coding genes (PCGs) and among functional groups. a Estimates of nonsynonymous (dN), synonymous (dS) substitution rates and dN/dS of 69 plastid protein-coding genes (PCG) with dN > 0.0003. b dN/dS c Nucleotide diversity (π) d percentage of variation (PV) and e gene length of functional groups. Detailed information of functional group is provided in Table S3Back to article page