Correspondence analysis of relative synonymous codon usage for Rickettsia conorii Malish 7 genes:
% variability
Axis 1
6.8
Axis 2
5.6
Axis 3
5.1
Axis 4
5.0
Axis 5
4.6
Axis 6
3.8
Red (), blue () and green squares () correspond to genes proposed as being acquired by HGT and included in regions with a low, high and non-deviated G+C content, respectively. Yellow cross diagonals (x) correspond to putative highly expressed genes.
Correlation values between main axis in correspondence analysis and different parameters. See the Abbreviations used: