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A single chromosome strain of S. cerevisiae exhibits diminished ethanol metabolism and tolerance.

Tyler W DoughtyRosemary YuLucy Fang-I ChaoZhongjun QinVerena SiewersJens B Nielsen
Published in: BMC genomics (2021)
Our results indicate that sirtuin-mediated silencing in the single chromosome strain interferes with growth on non-fermentable carbon sources. We propose that the removal of subtelomeric DNA that would otherwise be bound by sirtuins leads to silencing at other loci in the single chromosome strain. Further, we hypothesize that the poorly induced genes in the single chromosome strain during ethanol growth could be silenced by sirtuins in wildtype S. cerevisiae during growth on glucose.
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