Table I. Percent mtDNA levels in mutants on YEPD vs. YEPGE media as compared with wild type.

	Carbon source
Strain	YEPD	YEPGE
Wild type	100	100
mmm2Δ	16 ± 0.5	180 ± 23.7
mmm2Δ mmm1Δ	38 ± 18.3	157 ± 19.5
mmm1Δ	12 ± 3.9	161 ± 13.8

Total DNA was isolated from a tetratype tetrad grown in either YEPD or YEPGE, Southern blotted, and probed with ³²P-labeled mitochondrial COX2 gene. After normalization to the levels of hybridized nuclear-encoded TIM23 gene, relative amounts of mtDNA (COX2 signal) are compared.