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USA+ phenotype is transmitted by cytoduction
| URE2 variant | No. of USA+ clones/total no. testeda
|
|
|---|---|---|
| Isolate A | Isolate B | |
| URE2-21 | 19/20 | 20/20 |
| URE2-23 | 20/20 | 14/20 |
| URE2-24 | 20/20 | 20/20 |
| URE2-25 | 18/20 | 20/20 |
Spontaneous USA+ clones from strains expressing the URE2 variants were used as cytoduction donors. Recipient cells expressed the same scrambled URE2. The numbers indicate the fractions of cytoductants that were USA+.
