Human genetic variation determines 24-hour rhythmic gene expression and disease risk

Ying Chen, Panpan Liu, Aniko Sabo and Dongyin Guan ()
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Ying Chen: Baylor College of Medicine
Panpan Liu: Baylor College of Medicine
Aniko Sabo: Baylor College of Medicine
Dongyin Guan: Baylor College of Medicine

Nature Communications, 2025, vol. 16, issue 1, 1-14

Abstract: Abstract 24-hour biological rhythms are essential to maintain physiological homeostasis. Disruption of these rhythms increases the risks of multiple diseases. Biological rhythms are known to have a genetic basis formed by core clock genes, but how individual genetic variation shapes the oscillating transcriptome and contributes to human chronophysiology and disease risk is largely unknown. Here, we mapped interactions between temporal gene expression and genotype to identify quantitative trait loci (QTLs) contributing to rhythmic gene expression. These newly identified QTLs were termed as rhythmic QTLs (rhyQTLs), which determine previously unappreciated rhythmic genes in human subpopulations with specific genotypes. Functionally, rhyQTLs and their associated rhythmic genes contribute extensively to essential chronophysiological processes, including bile acid and lipid metabolism. The identification of rhyQTLs sheds light on the genetic mechanisms of gene rhythmicity, offers mechanistic insights into variations in human disease risk, and enables precision chronotherapeutic approaches for patients.

Date: 2025
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DOI: 10.1038/s41467-025-59524-5

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