Table 1.

Strains used in the MA experiment

Strain	Isolated (location/year)	Mating type
CC-1373	South Deerfield, MA, USA/1945	+
CC-1952	MN, USA/1986	−
CC-2342	PA, USA/1989	−
CC-2344	PA, USA/1989	+
CC-2931	Durham, NC, USA/1991	−
CC-2937	QC, Canada/1993	+