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Updated: Aug 6, 2026
06:13
Solid Plate-based Dietary Restriction in Caenorhabditis elegans
Published on: May 28, 2011
Dietary restriction is evolutionarily conserved on the phenotypic and mechanistic level
Sarah L Gautrey1, Luke T Dunning1, Toni I Gossmann2
1School of Biosciences, University of Sheffield, Sheffield, UK.
EMBO Reports
|July 16, 2026
Summary
Dietary restriction (DR) benefits aging across many Drosophila species. While many genes involved are species-specific, some core mechanisms for DR
Area of Science:
- Evolutionary biology
- Genetics
- Aging research
Background:
- Dietary Restriction (DR) is a conserved intervention that extends lifespan and healthspan across diverse species.
- The mechanistic basis and evolutionary conservation of DR's anti-aging effects are not fully understood.
- Phenotypic conservation of DR suggests underlying conserved genetic mechanisms, but evidence is limited.
Purpose of the Study:
- To investigate the phenotypic and transcriptomic conservation of Dietary Restriction (DR) responses across multiple Drosophila species.
- To identify conserved genes and mechanisms underlying DR's anti-aging effects.
- To explore the evolutionary history of genes involved in the DR response.
Main Methods:
- Tested longevity and fecundity responses to DR across eight Drosophila species.
- Utilized comparative transcriptomics to analyze gene expression changes in response to DR.
- Examined the evolutionary age of concordantly differentially expressed genes and tested the functional effects of conserved genes on lifespan.
Main Results:
- DR's effects on longevity and fecundity were largely phenotypically conserved across the tested Drosophila species.
- Comparative transcriptomics revealed concordant gene expression responses to DR.
- Many genes showing concordant responses were evolutionarily young; however, 12 of 15 tested conserved genes impacted lifespan, with 9 extending it.
Conclusions:
- While many components of the DR response are species-specific, core mechanisms appear to be conserved across Drosophila.
- The study identified specific conserved genes that mediate DR's lifespan-extending effects.
- Comparative genomic and transcriptomic approaches are powerful tools for uncovering shared aging mechanisms relevant to other species, including humans.
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