| ROS | reactive oxygen species; |
| mtDNA | mitochondrial DNA |
| DSBs | double-stranded DNA breaks |
| S. cerevisiae | Saccharomyces cerevisiae; |
| MGME1 | mitochondrial genome maintenance exonuclease 1 |
| POLG | DNA polymerase subunit γ |
| PFGE | pulsed-field gel electrophoresis |
| 2D gel electrophoresis | two-dimensional gel electrophoresis |