Indel (A+T)/(G+C) Substitution (A+T)/(G+C) Substitution Rate Fraction
  h mr or
m or r
h mr or
m or r
(A or T) →
(G or C)
(G or C) →
(A or T)
No GC or
AT change
h-mr 1.433 1.347 1.291 0.912 0.450 0.363 0.187
hr-m 1.582 1.304 1.434 0.809 0.497 0.355 0.148
hm-r 1.621 1.258 1.658 0.693 0.535 0.321 0.144
h-m-r h-m 1.353 1.148 1.403 0.975 0.360 0.270 0.370
h-r 1.327 1.008 0.873 0.375 0.258 0.367
Supplementary Table 3. Chromosome 12 G+C composition and fraction of lineage-specific change.
(h=human, m=mouse, r=rat)