Table 1.

Strains used in this study

Strain	Relevant genotype	Source and/or reference
QM6a	Wild-type MAT1-2	43
QM9414	QM6a derivative, MAT1-2	ATCC 26921; 64
QM9414 Δenv1	Δenv1::hph+ MAT1-2	5
QM9414 Δblr1	Δblr1::hph+ MAT1-2	5
QM9414 Δblr2	Δblr2::hph+ MAT1-2	5
CBS999.97 MAT1-1	Wild-type MAT1-1	57
CBS999.97 MAT1-2	Wild-type MAT1-2	57
CBS999.97 MAT1-1 Δenv1	Δenv1::hph+ MAT1-1	This study
CBS999.97 MAT1-2 Δenv1	Δenv1::hph+ MAT1-2	This study
CBS999.97 MAT1-1 Δblr1	Δblr1::hph+ MAT1-1	This study
CBS999.97 MAT1-2 Δblr1	Δblr1::hph+ MAT1-2	This study
CBS999.97 MAT1-1 Δblr2	Δblr2::hph+ MAT1-1	This study
CBS999.97 MAT1-2 Δblr2	Δblr2::hph+ MAT1-2	This study
CBS999.97 MAT1-1 Δblr1 Δblr2	Δblr1blr2::hph+ MAT1-1	This study
CBS999.97 MAT1-2 Δblr1 Δblr2	Δblr1blr2::hph+ MAT1-2	This study