ArticleThe Plant journal : for cell and molecular biology2024
Strigolactone induces D14-dependent large-scale changes in gene expression requiring SWI/SNF chromatin remodellers.
Article in The Plant journal : for cell and molecular biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- BRANCHED1 acts as a rheostat of Nuclear Factor Y-dependent epigenetic regulation in axillary bud development.Nature communications · 2026Article
- ThePlants (Basel, Switzerland) · 2026Review
- Shape-constrained, changepoint additive models for time series omics data with cpam.Nucleic acids research · 2026Article
- An N-terminal domain specifies developmental control by the SMAX1-LIKE family of transcriptional regulators inProceedings of the National Academy of Sciences of the United States of America · 2025Article
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Authors and funding
3 authors.
Funding
Abstract
Strigolactones (SL) function as plant hormones in control of multiple aspects of plant development, mostly via the regulation of gene expression. Immediate early-gene regulation by SL remains unexplored due to difficulty in dissecting early from late gene expression responses to SL. We used synthetic SL, rac-GR24 treatment of protoplasts and RNA-seq to explore early SL-induced changes in gene expression over time (5-180 minutes) and discovered rapid, dynamic and SL receptor D14-dependent regulation of gene expression in response to rac-GR24. Importantly, we discovered a significant dependence of SL signalling on chromatin remodelling processes, as the induction of a key SL-induced transcription factor BRANCHED1 requires the SWI/SNF chromatin remodelling ATPase SPLAYED (SYD) and leads to upregulation of a homologue SWI/SNF ATPase BRAHMA. ATAC-seq profiling of genome-wide changes in chromatin accessibility in response to rac-GR24 identified large-scale changes, with over 1400 differentially accessible regions. These changes in chromatin accessibility often precede transcriptional changes and are likely to harbour SL cis-regulatory elements. Importantly, we discovered that this early and extensive modification of the chromatin landscape also requires SYD. This study, therefore, provides evidence that SL signalling requires regulation of chromatin accessibility, and it identifies genomic locations harbouring likely SL cis-regulatory sequences.
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Registered trials
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