Table 2.

Transition to transversion ratios (ts/tv) of bacteria and unicellular-eukaryote MA lines with whole genomes sequenced

Organisms	ts/tv	GC content	$\frac{\mathrm{A}:\mathrm{T}\to \mathrm{G}:\mathrm{C}\mathrm{\hspace{1em}}\mathrm{t}\mathrm{r}\mathrm{a}\mathrm{n}\mathrm{s}\mathrm{t}\mathrm{i}\mathrm{o}\mathrm{n}\hspace{1em}\mathrm{r}\mathrm{a}\mathrm{t}\mathrm{e}}{\mathrm{G}:\mathrm{C}\to \mathrm{A}:\mathrm{T}\mathrm{\hspace{1em}}\mathrm{\hspace{1em}}\mathrm{t}\mathrm{r}\mathrm{a}\mathrm{n}\mathrm{s}\mathrm{i}\mathrm{t}\mathrm{i}\mathrm{o}\mathrm{n}\mathrm{\hspace{1em}}\mathrm{r}\mathrm{a}\mathrm{t}\mathrm{e}}$	References
Unicellular eukaryotes
Chlamydomonas reinhardtii	0.76	0.64	0.40	Ness et al. (2015)*
Rhodotorula toruloides	1.83	0.62	0.99	This study
Saccharomyces cerevisiae	0.95	0.38	0.40	Zhu et al. (2014)
Schizosaccharomyces pombe	0.75a	0.36	0.48a	Behringer and Hall (2015)
				Farlow et al. (2015)
Bacteria
Bacillus subtilis	2.46	0.43	0.76	Sung et al. (2015)
Burkholderia cenocepacia	1.21	0.67	0.86	Dillon et al. (2015)
Deinococcus radiodurans	1.71	0.67	1.14	Long et al. (2015a)
Escherichia coli	1.28	0.51	0.62	Lee et al. (2012)
Mesoplasma florum	1.26	0.27	0.08	Sung et al. (2012)
Mycobacterium smegmatis	1.48	0.66	1.43	Kucukyildirim et al. (2016)

Note.—The ts/tv ratio is calculated by $\frac{\sum _1^{n}transitions}{\sum _1^{n}transversions}$, where n is the number of MA lines.

^*Mutations from strains CC2344 and CC2931 are not included due to presence of MA lines with affected DNA repair.

^aAverage value of Behringer and Hall (2015) and Farlow et al. (2015).