What does this research mean for the field?

BRANCHED1 (BRC1) acts as a dose-dependent molecular rheostat that inhibits NF-Y complex assembly and its epigenetic regulatory effects, such as chromatin looping and H3K27me3 demethylation, to fine-tune floral organ development gene expression and axillary bud activity. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To identify the downstream gene regulatory networks governed by BRC1 and elucidate the epigenetic mechanisms controlling plastic axillary bud development.

August 27, 2026Nature CommunicationsOpen Access

BRANCHED1 acts as a rheostat of Nuclear Factor Y-dependent epigenetic regulation in axillary bud development

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Authors

YMYang Mai HZHao Zhu JZJinping Zhao

Discussion

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Overview

Mechanistic study reveals that BRC1 inhibits NF-Y-dependent chromatin activation in plant shoot systems, highlighting a tunable rheostat mechanism governing plastic bud development.

Key Points

To identify the downstream gene regulatory networks governed by BRC1 and elucidate the epigenetic mechanisms controlling plastic axillary bud development.
Identified branching-responsive transcription factor clusters inversely correlated with BRC1 expression levels.
Investigated heterotrimeric NF-Y complex assembly, chromatin looping, and H3K27me3 demethylation at target floral organ development loci.
Identified floral organ development and shoot morphogenesis transcription factors that are dynamically repressed by BRC1.
Demonstrated that the heterotrimeric NF-Y complex activates target genes by promoting chromatin looping and H3K27me3 demethylation.
Showed that BRC1 disrupts NF-Y complex assembly in a dose-dependent manner to quantitatively regulate target gene expression and bud outgrowth.

Cite This Study

Mai et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe96710c91c1e9262103a https://doi.org/10.1038/s41467-026-77029-7

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August 27, 2026Nature CommunicationsOpen Access

BRANCHED1 acts as a rheostat of Nuclear Factor Y-dependent epigenetic regulation in axillary bud development

View Full Paper

Ask AI

Bookmark

Authors

YMYang Mai HZHao Zhu JZJinping Zhao

Discussion

Member takes

Overview

Mechanistic study reveals that BRC1 inhibits NF-Y-dependent chromatin activation in plant shoot systems, highlighting a tunable rheostat mechanism governing plastic bud development.

Key Points

To identify the downstream gene regulatory networks governed by BRC1 and elucidate the epigenetic mechanisms controlling plastic axillary bud development.
Identified branching-responsive transcription factor clusters inversely correlated with BRC1 expression levels.
Investigated heterotrimeric NF-Y complex assembly, chromatin looping, and H3K27me3 demethylation at target floral organ development loci.
Identified floral organ development and shoot morphogenesis transcription factors that are dynamically repressed by BRC1.
Demonstrated that the heterotrimeric NF-Y complex activates target genes by promoting chromatin looping and H3K27me3 demethylation.
Showed that BRC1 disrupts NF-Y complex assembly in a dose-dependent manner to quantitatively regulate target gene expression and bud outgrowth.

Cite This Study

Mai et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe96710c91c1e9262103a https://doi.org/10.1038/s41467-026-77029-7

View Full Paper

Ask AI

Bookmark