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Related Experiment Video

Updated: Jan 15, 2026

Quantification of Information Encoded by Gene Expression Levels During Lifespan Modulation Under Broad-range Dietary Restriction in C. elegans

Quantification of Information Encoded by Gene Expression Levels During Lifespan Modulation Under Broad-range Dietary Restriction in C. elegans

Published on: August 16, 2017

Dietary-Driven Gene Expansion.

Magnus Ingelman-Sundberg¹

¹Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.

Clinical Pharmacology and Therapeutics

|October 11, 2025

Summary

This summary is machine-generated.

Dietary pressures drive gene duplication, expanding detoxification genes across species. This genomic adaptation impacts drug metabolism and pesticide resistance in various organisms.

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Area of Science:

Evolutionary biology
Genomics
Biochemistry

Background:

Gene duplication is a key mechanism in molecular evolution.
Dietary factors can exert significant selective pressures on genomes.
Detoxification genes are crucial for adapting to environmental toxins.

Purpose of the Study:

To explore the role of diet in driving gene expansion.
To understand how gene duplication aids in detoxifying dietary compounds.
To highlight the evolutionary impact of diet on detoxification pathways.

Main Methods:

Comparative genomics analysis across species.
Identification of expanded gene families related to metabolism.
Correlation of gene expansion with specific dietary components.

Main Results:

Gene duplications in detoxification pathways are common across diverse species.
Examples include CYP2D6 in humans for alkaloid metabolism and CYP6CY3 in aphids for nicotine resistance.
Woodrats show expansion of ADME genes for detoxifying creosote.

Conclusions:

Dietary-driven gene expansion (DGE) is a significant evolutionary force.
DGE influences adaptation to specific diets and environmental challenges.
Understanding DGE is crucial for predicting responses to drugs and pesticides.