Burtner CR, et al. (2011) A genomic analysis of chronological longevity factors in budding yeast. Cell Cycle 10(9):1385-96
Abstract: Chronological life span (CLS) has been studied as an aging paradigm in yeast. A few conserved aging genes have been identified that modulate both chronological and replicative longevity in yeast as well as longevity in the nematode Caenorhabditis elegans; however, a comprehensive analysis of the relationship between genetic control of chronological longevity and aging in other model systems has yet to be reported. To address this question, we performed a functional genomic analysis of chronological longevity for 550 single-gene deletion strains, which accounts for approximately 12% of the viable homozygous diploid deletion strains in the yeast ORF deletion collection. This study identified 33 previously unknown determinants of CLS. We found no significant enrichment for enhanced CLS among deletions corresponding to yeast orthologs of worm aging genes or among replicatively long-lived deletion strains, although a trend toward overlap was noted. In contrast, a subset of gene deletions identified from a screen for reduced acidification of culture media during growth to stationary phase was enriched for increased CLS. These results suggest that genetic control of CLS under the most commonly utilized assay conditions does not strongly overlap with longevity determinants in C. elegans, with the existing confined to a small number of genetic pathways. These data also further support the model that acidification of the culture medium plays an important role in survival during chronological aging in synthetic medium, and suggest that chronological aging studies using alternate medium conditions may be more informative with regard to aging of multicellular eukaryotes.
| Status: Published | Type: Journal Article | PubMed ID: 21447998 |
Topics addressed in this paper
Number of different genes curated to this paper: 147
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| ERG5 | FMP41 | FOX2 | FZO1 | GCN2 | GIN4 | GOS1 | GPA1 | GPR1 | GYP7 | |
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| RPL37B | RPL9A | RPS0B | RPS11A | RPS27B | RPS4B | RRG1 | RSM19 | RSM24 | RVS167 | |
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| SCH9 | SCP160 | SET2 | SFC1 | SGS1 | SIF2 | SKP2 | SLG1 | SLM6 | SOK1 | |
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| SPT20 | SPT3 | SSA1 | SUB1 | SWD1 | SWD3 | SWI4 | SYH1 | TAF14 | TED1 | |
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| YDR433W | YDR541C | YGR219W | YIA6 | YIL077C | YIM2 | YJL007C | YJL107C | YLR402W | YMR226C | |
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| YNL184C | YOR1 | YOR111W | YPT32 | YPT6 | YTA12 | YVH1 | |
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