Evidence map›Paper›PMID 42479415›Full record

ArticleJournal of applied genetics2026

Impaired strigolactone biosynthesis and signalling are associated with promoter-associated CHH hypermethylation in Arabidopsis thaliana.

Agnieszka Brąszewska, Marek Marzec

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Article in Journal of applied genetics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

2 authors.

Agnieszka BrąszewskaFaculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, 40-032, Poland.ORCID http://orcid.org/0000-0003-0997-8753
Marek MarzecFaculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, 40-032, Poland. marek.marzec@us.edu.pl.ORCID http://orcid.org/0000-0002-5261-6662

Funding

Narodowe Centrum Nauki 2023/50/E/NZ3/00236
6 · The paper itself

Abstract

Strigolactones are plant hormones that regulate diverse developmental processes and stress responses, but their potential role in epigenetic regulation remains poorly understood. Previous transcriptomic analyses of strigolactone mutants in various species revealed extensive transcriptional reprogramming, suggesting destabilisation of higher-order regulatory mechanisms rather than changes in discrete gene networks. Here, we investigated whether disruption in strigolactone biosynthesis or perception is associated with altered DNA methylation patterns. Whole-genome bisulfite sequencing was performed on 7-day-old seedlings of Arabidopsis thaliana wild-type and the strigolactone biosynthesis mutant max3 and the perception mutant d14. A comparative analysis identified differentially methylated regions in CG, CHG, and CHH sequence contexts. While CG methylation changes showed no directional bias, non-CG contexts exhibited a pronounced enrichment of hypermethylated regions in both mutants, with the strongest effect observed in the CHH context. CHH hypermethylation was preferentially enriched at promoter-associated regions, primarily overlapping non-coding and pseudogene loci and showed substantial overlap between max3 and d14, indicating a shared epigenetic response in both mutants. Gene-body-associated regions displayed a similar but weaker pattern. These results demonstrate that impairment of the strigolactone pathway is consistently associated with selective CHH hypermethylation rather than global methylation changes. Because CHH methylation in plants is commonly associated with RNA-directed DNA methylation, the observed pattern is consistent with altered RdDM-associated regulation; however, direct involvement of the RdDM machinery remains to be established. This study provides a genome-wide framework for exploring how strigolactones may be associated with epigenetic regulation in plants.

Indexed as

CHH methylationDNA methylationEpigenetic regulationRNA-directed DNA methylationStrigolactone signalling

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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 OpenQuestion graph.