Fig. 2

Bulk SNP GC content (sbGC) for each of the 35 core genomes (vertical axis) plotted against corresponding core genome GC content (cgGC, horizontal axis). Dots are colored according to taxonomic group (see legend). The dark blue points represent gcMOD with median α (AT→ GC mutation rates) and β (GC→AT mutation rates) estimated using Bayesian inference. The dashed line represents an alternative hypothesis, namely identical SNP GC- and core genome GC content (sbGC = cgGC)