What does this research mean for the field?

Sympatric European white oak species exhibit contrasting epigenetic and transcriptomic responses to drought stress, with cell wall remodeling and distinct methylation patterns driving their different levels of drought tolerance. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

What question did this study set out to answer?

To identify the transcriptomic, post-transcriptional, and epigenetic mechanisms underlying differential drought tolerance in two sympatric European white oak species.

September 14, 2026Tree Physiology

Sympatric European white oaks species display contrasting epigenetic response to soil water availability

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Authors

BRB Rubio GPGrégoire Le ProvostInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement BBBenjamin BrachiInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

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Implication

Epigenomic profiling reveals contrasting drought responses between sympatric white oak species, highlighting cell wall remodeling and DNA methylation in climate adaptation.

Key Points

To identify the transcriptomic, post-transcriptional, and epigenetic mechanisms underlying differential drought tolerance in two sympatric European white oak species.
Cultivated young Quercus robur and Quercus petraea saplings under controlled watering and drought stress conditions.
Profiled and integrated dynamics across the transcriptome, small RNAome, and DNA methylome to evaluate multi-omic stress responses.
Quercus petraea exhibited superior drought tolerance compared to Quercus robur, largely driven by differential activation of cell wall remodeling pathways.
Identified distinct interspecific DNA methylation patterns under drought, demonstrating species-specific epigenetic regulation tied to water availability.
Mapped genomic co-locations across transcriptomic, small RNA, and methylomic datasets that correspond to ecological niche adaptations in forest trees.

Cite This Study

Rubio et al. (2026) studied this question.

synapsesocial.com/papers/6aa7b3aa0926e14a848b2c3e https://doi.org/10.1093/treephys/tpag134

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Implication

Epigenomic profiling reveals contrasting drought responses between sympatric white oak species, highlighting cell wall remodeling and DNA methylation in climate adaptation.

Sympatric European white oaks species display contrasting epigenetic response to soil water availability

Discussion

Member takes

Implication

Key Points

Cite This Study

Sympatric European white oaks species display contrasting epigenetic response to soil water availability

Discussion

Member takes

Implication

Key Points

Cite This Study

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