Table 1.

Saccharomyces cerevisiae strains used

Strain	Genotype	Source
BYB84	MATa gal2 leu2 prb1-1122 pep4-3 prc1-407 trp1 ura3-52 ste5Δ	Inouye et al. (1997b)
BYB88	MATa ade2-101oc his3-Δ200 leu2Δ-1 lys2-801am trp1-Δ63 ura3-52 ste4Δ∷TRP1 ste5Δ∷LYS2	Inouye et al. (1997b)
BYB91	MATa ade2-1 can1-100 his3-11,15 leu2-3,112 lys2∷hisG trp1-1 ura3-1 ste4Δ∷TRP1 ste5Δ∷LYS	This work
YCS1	MATa ade2-101oc his3-Δ200 leu2Δ-1 lys2-801amtrp1-Δ63 ura3-52 ste4Δ∷TRP1 ste5Δ∷LYS2 ste20Δ∷LEU2	This work
YCS3	MATa ade2-101oc his3-Δ200 leu2Δ-1 lys2-801amtrp1-Δ63 ura3-52 ste4Δ∷TRP1 ste5Δ∷LYS2 ste12Δ∷LEU2	This work
DC17	MATα his1	J.B. Hicks