. 2023 May 23;15(6):evad086. doi: 10.1093/gbe/evad086

Table 1.

Spontaneous whole chromosome duplication rate in six species

Species	N _lines	Gen	Tot_Gen	N _Chrom	N _WCD	Duplicated Chrom	U _WCD	U _cell	U _bs
Bathycoccus prasinos	35	143	4,994	19	5	C04, C05, C06, C19	0.000054	0.00103	0.0046
Micromonas commoda	37	112	4,145	17	5	C05, C12, C16, C17	0.000071	0.00121	0.0171
Ostreococcus tauri	40	431	17,250	20	0	—	<0.000003	<0.00006	0.0054
Ostreococcus mediterraneus	37	235	8,710	19	1	C14	0.000006	0.00011	0.0064
Picochlorum costavermella	12	133	1,596	10	0	—	<0.00006	<0.00063	0.0119
Phaeodactylum tricornutum	36	181	6,516	25	4	C02, C14, C23	0.000025	0.00061	0.0132

N _lines, number of MA lines; Gen, average number of generations per MA line; Tot_Gen, total number of generations; N_Chrom, number of chromosomes in the ancestral karyotype; N_WCD, number of independent whole chromosome duplications; U_WCD, whole chromosome duplication rate per chromosome per cell division; U_Cell, whole chromosome duplication rate per cell division; and U_bs, base substitution mutation rate per cell division. The estimation of the upper limit of N_WCD and U_cell in O. tauri and P. costavermella relies on the assumption of one duplication event.