Figure 3.Ectopic expression of TSA1-B7 mediates CHP resistance.(A) Candidate
genes HOT1, CLC1, DON1, and TSA1 were amplified from the
K6001-B7 genome, subcloned, and ectopically expressed in the K6001 parent.
Transformants expressing TSA1-B7 were viable on CHP media. (B)
CHP resistance is specific to the expression of TSA1-B7. Centromeric
plasmids encoding wild type TSA1+ and its B7 form were
transformed into K6001. The additional copy of TSA1+ had
no effect on CHP resistance in K6001 (left) and S288c/BY4741 (right).