Fig. 6From: Chloroplast gene expression level is negatively correlated with evolutionary rates and selective pressure while positively with codon usage bias in Ophioglossum vulgatum LCorrelation analysis of the evolutionary rates, selective pressure, GC content and ENC. (a, c, e) Correlation analysis between dN, dS, and dN/dS, and all GC content. (b, d, f) Correlation analysis between dN, dS, and dN/dS, and all ENCBack to article page