Evidence map›Paper›PMID 40999518›Full record

ArticleGenome biology2025

Land plant-specific H3K27 methyltransferases ATXR5 and ATXR6 control plant development and stress responses.

Xiaoyi Li, Jie Pan, Qian Liu, Huairen Zhang, Hui Li, Danhua Jiang

Abstract read
In one paragraph

Article in Genome biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Xiaoyi Li *Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, Singapore.
Jie Pan *State Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
Qian LiuTemasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, Singapore.
Huairen ZhangState Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
Hui LiState Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
Danhua JiangTemasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, Singapore. danhua@tll.org.sg.

Funding

National Key Research and Development Program of China 2023YFD1200704
6 · The paper itself

Abstract

backgroundHistone modifications are critical for transcriptional regulation. A notable genetic innovation in land plants is the emergence of histone lysine methyltransferases ATXR5/6, which specifically catalyze the repressive histone H3 lysine 27 monomethylation (H3K27me1). Current knowledge of ATXR5/6 function is largely based on Arabidopsis studies using a weak atxr5;atxr6 hypomorphic mutant, in which ATXR6 is still partially expressed and defects are primarily observed in heterochromatin. However, the significance for land plants to evolve these enzymes remains unclear.

resultsIn this study, we generate strong atxr5;atxr6 mutants with further reduced ATXR6 expression in Arabidopsis to explore the broader roles of ATXR5/6. Our results show that ATXR5/6 are essential for plant reproductive development and play a critical role in supporting normal plant growth by repressing the transcription of stress responsive genes. In addition, ATXR5/6 are necessary for maintaining H3K27 trimethylation (H3K27me3), likely by providing H3K27me1 as a substrate for further methylation. We also demonstrate that the function of ATXR5/6 in regulating development and responsive genes is conserved in the monocot rice.

conclusionsOur findings suggest that land plants evolved ATXR5/6 not only to maintain heterochromatin, but also to regulate development and environmental responses, providing new insights into the functional significance of ATXR5/6 in land plants.

Indexed as

ArabidopsisArabidopsis ProteinsGene Expression Regulation, DevelopmentalMethyltransferasesStress, PhysiologicalGene Expression Regulation, EnzymologicGene Expression Regulation, PlantHeterochromatinHistonesMethylationMutationOryzaTranscription, GeneticArabidopsis ProteinsATXR5 protein, ArabidopsisATXR6 protein, ArabidopsisHeterochromatinHistonesMethyltransferases

Identifiers

PMID40999518
PMCPMC12461997

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.