TABLE 2.
Effects of telomere size (at the time of senescence) on telomeric recombination on solid medium in telomerase-negative (tlc1Δ) mutantsa
Survivor fate and type of telomeric recombination initiated in the presence of wild-type-length telomeresb | Relevant genotype | Survivor fate and type of telomeric recombination initiated in the presence of overelongated telomeresc |
---|---|---|
I or II | tlc1Δ | II then Id |
I | tlc1Δ rad50Δ | I |
II | tlc1Δ rad51Δ | II |
Death | tlc1Δ rad52Δ | II |
I | tlc1Δ rad59Δ | I |
I | tlc1Δ rfa1-t11 | II |
Death | tlc1Δ rad50Δ rad51Δ | II |
I | tlc1Δ rad50Δ rad59Δ | I |
NDe | tlc1Δ rad50Δ rfa1-t11 | Death (6) |
Atypical I | tlc1Δ rad51Δ rfa1-t11 | II |
Death | tlc1Δ rad59Δ rfa1-t11 | Death (2) |
Death | tlc1Δ rad50Δ rad51Δ rad59Δ | Death (8) |
Death | tlc1Δ rad50Δ rad51Δ rfa1-t11 | Death (15) |
Death | tlc1Δ rad50Δ rad59Δ rfa1-t11 | Death (2) |
A RAD52+ background was used throughout except for the tlc1Δ rad52Δ strain (row 4). Restreak assays were performed.
Numbers in parentheses indicate the number of passages before death occurred (∼30 generations per passage).
See Fig. 9.
ND, not determined.