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Figure 3 | BMC Evolutionary Biology

Figure 3

From: Quantitative relationship between synonymous codon usage bias and GC composition across unicellular genomes

Figure 3

Correlation between SCUO and GC composition in 70 bacterial genomes. (a) Relationship between SCUO and GC1. (b) Relationship between SCUO and GC2. (c) Relationship between SCUO and GC3, where the red line denotes the binary selection model (Equation 12), the blue line denotes the codon bias resulting from a single amino acid with binary codons (Equation 10) and the green line denotes the mathematical model for 2, 3, 4 and 6 codons (Equation 11), and the maroon line reflects the quadratic regression line SCUO = -2.06 * GC3 + 2.05*(GC3)2 + 0.65, r = 0.91. (d) Relationship between SCUO and overall GC.

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