LindaHoskins LastModified TheseconditionsworkwellfortheHieteryeaststrains 1.Isolatediploidcolonies.Inoculate2mlYPD+Adewithasingle,largediploidcolonyandgrowO/Nat30degreesCtostationaryphase. 2.Put200ulofstationaryphasecellsinto5mlsterile,distilledH2O.Spindown2min.inclinicalcentrifuge.Washagainwith5mlH2O. 3.ResUSPendin2ml0.5%(50mM)KOAc(pH7.0)+0.5XnutrientsforauxotrophicMarkers(usuallyAde,Ura,Trp,Leu,His,Lys,Met). 4.Incubateontuberolleratrm.temp.for3-7days. 5.Checkforsporulationundermicroscope.Spindowntetradsinasmallglasstubeandwash3timeswith5mlsterileH2O.Resuspendin2mlH2O. 6.Spindown180ulcells.Resuspendin90ulZymolyase,0.5mg/mlin1Msorbitol.Incubateat30degreesfor5-10minutes. 7.Slowlyadd0.3mlH2Oonicetostopthereaction. 8.Plate30ulcellsontoYPD+Ade,Trp,Uraanddissect.