TABLE 4.

Unequal chromosome segregation and other mitotic defects are elevated in Δabp1 Δcbh1 fission yeast^a

Strain genotypeb	No. (%) of cells
	Normal	Unequal	Lagging	Placement	Asymmetric	“Cut”	Total
WT	183 (100)	0 (<0.6)	0 (<0.6)	0 (<0.6)	0 (<0.6)	0 (<0.6)	183
Δcbh1	123 (100)	0 (<0.8)	0 (<0.8)	0 (<0.8)	0 (<0.8)	0 (<0.8)	124
Δabp1	147 (92.5)	6 (3.8)	3 (1.9)	3 (1.9)	0 (<0.6)	0 (<0.6)	159
Δabp1 Δcbh1	71 (69.6)	14 (13.7)	6 (5.9)	6 (5.9)	3 (2.9)	2 (2.0)	104

^aPropidium iodide-stained dividing cells were scored for the shown patterns. Cells with a placement defect contained one chromatin mass at the midpoint of the cell and the other mass at one end of the cell. Cells exhibiting asymmetric chromatin distribution or a “cut” phenotype contained a septum. Only a fraction of the cells in other categories had formed a septum. 

^bSee footnote a to Table 3 for strain names. WT, wild type.