From: Quantitative analysis of mutation and selection pressures on base composition skews in bacterial chromosomes
χG cd
χG nc
m
r
σG R
0.55
0.85
0.45
0.84
σG T
0.59
0.51
0.42
0.44
χCDS·σGT
0.79
0.30
0.66
χA cd
χA nc
σA R
0.86
0.58
σA T
0.70
χCDS·σAT
0.81
0.35
0.60