Additional file 6.

Figure S2 - codon usage. (a) Principal component analysis of relative synonymous codon usage in Ich. (b) Effective number of codons (ENc; a measure of overall codon bias) for each predicted ORF is plotted versus GC3 (the fraction of codons that are synonymous at the third codon position that have either a guanine or a cytosine at that position). The upper limit of expected bias based on GC3 alone is represented by the red curve.

Format: PDF Size: 4.8MB Download file

This file can be viewed with: Adobe Acrobat Reader

Coyne et al. Genome Biology 2011 12:R100   doi:10.1186/gb-2011-12-10-r100