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A non-coding SNP in ELF3 alters ELF3β expression and confers adaptation of Arabidopsis to a continental climate
A genetic variant outside ELF3 changes its protein levels and helps Arabidopsis adapt to continental climates
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Abstract
Naturally occurring variation in the core clock gene ELF3 influences circadian period length in plants.
- Variation in ELF3 has been selected for in hot, seasonal climates.
- Circadian rhythms of 287 global Arabidopsis accessions were measured using a luciferase reporter.
- Genome-wide association studies identified multiple single nucleotide polymorphisms (SNPs) in ELF3.
- Three haplogroups associated with seasonal temperature variability were defined based on SNP identities.
- A selective sweep in ELF3 haplogroups correlates with the most recent de-glaciation period in Europe.
- Subtle variation in ELF3 may play a significant role in plant adaptation to climate change.
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