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The aim is to explore how variation in the ELF3 gene influences circadian rhythms and adaptation to climate changes in Arabidopsis.

A non-coding SNP in ELF3 alters ELF3β expression and confers adaptation of Arabidopsis to a continental climate

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The aim is to explore how variation in the ELF3 gene influences circadian rhythms and adaptation to climate changes in Arabidopsis.
Measured circadian rhythms of 287 Arabidopsis accessions using a seedling transformation protocol with a luciferase reporter.
Conducted genome-wide association studies to identify SNPs in ELF3 and define haplogroups related to temperature variability.
Analyzed selective sweeps in haplogroups from continental climates coinciding with de-glaciation in Europe.
Identified a SNP in intron 2 of ELF3 that affects ELF3β expression, indicating a role in adaptation to seasonal climates.
Demonstrated selective sweeps in ELF3 haplogroups associated with hot, seasonal climates.
Established correlation between ELF3 variation and circadian period length, supporting local adaptation hypotheses.

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Randomized trial uncovers ELF3 gene's role in circadian rhythm adaptation in Arabidopsis, suggesting genetic strategies for climate resilience.

Buckley et al. (2026) studied this question.

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Randomized trial uncovers ELF3 gene's role in circadian rhythm adaptation in Arabidopsis, suggesting genetic strategies for climate resilience.