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Table 2 Description statistics of dN, dS, and dN/dS in all conserved genes

From: Chloroplast gene expression level is negatively correlated with evolutionary rates and selective pressure while positively with codon usage bias in Ophioglossum vulgatum L

Variable

Mean

Maximum

Minimum

Variance

Standard deviation

dN

0.7664

2.9696

0.0301

0.4097

0.6401

dS

4.9955

8.7323

2.1131

1.6214

1.2734

ω(dN/dS)

0.1445

0.5173

0.0142

0.0103

0.1013