Table 1.

Sporulation, spore viability, and crossing over in cells overproducing Ndt80

Strains	BR2495 background		SK1 background
					Crossing over, centimorgans
	Sporulation efficiency, %	Spore viability, %	Sporulation efficiency, %	Spore viability, %	MAT/CEN3	CEN3/HIS4
Wild type + vector	76.0	97.9	96.0	98.9	11.6	31.9
Wild type + Ndt80-OP	54.6	95.8	80.4	96.5	12.4	32.7
zip1 + vector	0		65.5	60.0	5.7	3.7
zip1 + Ndt80-OP	18.0	44.8	54.0	48.8	8.8	4.3

Sporulation efficiencies represent the averages of four independent cultures, with 100 cells counted for each culture. For BR2495 spore viability data, 48 tetrads were dissected from each strain. For spore viability and crossover frequencies in wild-type SK1, 190 tetrads were dissected for each strain. For zip1 SK1 strains, at least 450 tetrads were dissected. OP, overproduced.