Strain A × Strain B Mating type A×A A×B B×A B×B IPSI IAPSI(AB/BA)
S × U homotypic 32 12 5 51 0.67*** 0.57
G × P homotypic 12 18 8 27 0.20 0.85
P × S heterotypic 50 18 18 34 0.40*** 1.01
G × U heterotypic 39 15 27 32 0.28** 1.20