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miR156-Regulated SPL Transcription Factors Define an Endogenous Flowering Pathway in Arabidopsis thaliana

Open access
Wang, Jia-Wei, Czech, Benjamin, Weigel, Detlef·2009·Cell

Abstract

The FT gene integrates several external and endogenous cues controlling flowering, including information on day length. A complex of the mobile FT protein and the bZIP transcription factor FD in turn has a central role in activating genes that execute the switch from vegetative to reproductive development. Here we reveal that microRNA156-targeted SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes not only act downstream of FT/FD, but also define a separate endogenous flowering pathway. High levels of miR156 in young plants prevent precocious flowering. A subsequent day length-independent decline in miR156 abundance provides a permissive environment for flowering and is paralleled by a rise in SPL levels. At the shoot apex, FT/FD and SPLs converge on an overlapping set of targets, with SPLs directly activating flower-promoting MADS box genes, providing a molecular substrate for both the redundant activities and the feed-forward action of the miR156/SPL and FT/FD modules in flowering control.

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Crossref · 10.1016/j.cell.2009.06.014

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Metadata

Authors
Wang, J.-W., Czech, B., & Weigel, D.
Venue
Cell
Publisher
Elsevier BV
Published
2009-08
Volume
138
Issue
4
Pages
738-749
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2030989926
Cited by
1,489
References
2
FWCI
66.88
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: miR156-Regulated SPL Transcription Factors Define an Endogenous Flowering Pathway in Arabidopsis thaliana. https://app.cochat.ai/papers/10.1016/j.cell.2009.06.014
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Wang, J.-W., Czech, B., & Weigel, D. (2009). miR156-Regulated SPL Transcription Factors Define an Endogenous Flowering Pathway in Arabidopsis thaliana. Cell. https://doi.org/10.1016/j.cell.2009.06.014

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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