<p>ENc denotes the effective number of codons, and GC3s denotes the GC content on the third synonymous codon position. The red dotted line represents the expected curve derived from the positions of strains when the codon usage was only determined by the GC3s composition.</p
<p>The solid curve was the expectation of the ENC under the assumption of no selection on codon usag...
<p>At the top are plotted the R<sup>2</sup>s and the slopes of the correlations between codon occurr...
<p>In each plot the third base is labelled as in the top left (stop codons not shown).</p
<p>ENc were plotted against GC content at the third codon position. The expected ENc from GC3 are sh...
<p>(A) isolated countries, (B) isolated continents, depicted in different colors. It's essential to ...
<p>The curve indicates the expected codon usage if compositional constraint alone account for codon ...
<p>(A, B) Plots of the effective number of codons (Nc) plotted versus third codon position GC conten...
<p>The black plot represents the ENC value against the G+C content at the third codon position (GC3s...
<p>Correlation between GC<sub>3</sub> and the effective codon usage statistic (ENC) among (a) S segm...
<div><p>(A) Effective number of codons (ENc; a measure of overall codon bias) for each predicted ORF...
<p>Plot of ENC against GC content (A), variance of third-position GC content (B), variance of third-...
<p>The difference between the occurrence of each of the 61 sense codons from the occurrence expected...
<p>The corrleation between axis 1, axis 2 and ENC, CAI, GC<sub>3</sub>%, respectively, for codon usa...
(A)The ENC-GC3s plot. (B) The neutrality plots. (C)The PR2 bias plot. Each point represents a specie...
<p>Correlation between GC content at third codon position (GC<sub>3</sub>) and the effective codon u...
<p>The solid curve was the expectation of the ENC under the assumption of no selection on codon usag...
<p>At the top are plotted the R<sup>2</sup>s and the slopes of the correlations between codon occurr...
<p>In each plot the third base is labelled as in the top left (stop codons not shown).</p
<p>ENc were plotted against GC content at the third codon position. The expected ENc from GC3 are sh...
<p>(A) isolated countries, (B) isolated continents, depicted in different colors. It's essential to ...
<p>The curve indicates the expected codon usage if compositional constraint alone account for codon ...
<p>(A, B) Plots of the effective number of codons (Nc) plotted versus third codon position GC conten...
<p>The black plot represents the ENC value against the G+C content at the third codon position (GC3s...
<p>Correlation between GC<sub>3</sub> and the effective codon usage statistic (ENC) among (a) S segm...
<div><p>(A) Effective number of codons (ENc; a measure of overall codon bias) for each predicted ORF...
<p>Plot of ENC against GC content (A), variance of third-position GC content (B), variance of third-...
<p>The difference between the occurrence of each of the 61 sense codons from the occurrence expected...
<p>The corrleation between axis 1, axis 2 and ENC, CAI, GC<sub>3</sub>%, respectively, for codon usa...
(A)The ENC-GC3s plot. (B) The neutrality plots. (C)The PR2 bias plot. Each point represents a specie...
<p>Correlation between GC content at third codon position (GC<sub>3</sub>) and the effective codon u...
<p>The solid curve was the expectation of the ENC under the assumption of no selection on codon usag...
<p>At the top are plotted the R<sup>2</sup>s and the slopes of the correlations between codon occurr...
<p>In each plot the third base is labelled as in the top left (stop codons not shown).</p