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A Repressor Complex Governs the Integration of Flowering Signals in Arabidopsis

Li, Dan and Liu, Chang and Shen, Lisha and Wu, Yang and Chen, Hongyan and Robertson, Masumi and Helliwell, Chris A. and Ito, Toshiro and Meyerowitz, Elliot and Yu, Hao (2008) A Repressor Complex Governs the Integration of Flowering Signals in Arabidopsis. Developmental Cell, 15 (1). pp. 110-120. ISSN 1534-5807. https://resolver.caltech.edu/CaltechAUTHORS:20161201-153102867

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Abstract

Multiple genetic pathways act in response to developmental cues and environmental signals to promote the floral transition, by regulating several floral pathway integrators. These include FLOWERING LOCUS T (FT) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1). We show that the flowering repressor SHORT VEGETATIVE PHASE (SVP) is controlled by the autonomous, thermosensory, and gibberellin pathways, and directly represses SOC1 transcription in the shoot apex and leaf. Moreover, FT expression in the leaf is also modulated by SVP. SVP protein associates with the promoter regions of SOC1 and FT, where another potent repressor FLOWERING LOCUS C (FLC) binds. SVP consistently interacts with FLC in vivo during vegetative growth and their function is mutually dependent. Our findings suggest that SVP is another central regulator of the flowering regulatory network, and that the interaction between SVP and FLC mediated by various flowering genetic pathways governs the integration of flowering signals.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.devcel.2008.05.002DOIArticle
http://www.cell.com/developmental-cell/abstract/S1534-5807(08)00180-9PublisherArticle
ORCID:
AuthorORCID
Ito, Toshiro0000-0002-8206-2787
Meyerowitz, Elliot0000-0003-4798-5153
Additional Information:© 2008 Elsevier Inc. Received: April 2, 2008. Revised: April 29, 2008. Accepted: May 1, 2008. Published: July 7, 2008 . We thank P. Huijser, I. Lee, R. Amasino, M. Yanofsky, A. Samach, G. Coupland, D. Weigel, and N.-H. Chua for materials, and Y. Eshed and Y. He for critical reading of the manuscript. This work was supported by Academic Research Funds R-154-000-282-112 and R-154-000-337-112 from the National University of Singapore and R-154-000-263-112 from the Ministry of Education, Singapore, and intramural research funds from Temasek Life Sciences Laboratory.
Funders:
Funding AgencyGrant Number
National University of SingaporeR-154-000-282-112
National University of SingaporeR-154-000-337-112
Ministry of Education (Singapore)R-154-000-263-112
Temasek Life Sciences LaboratoryUNSPECIFIED
Subject Keywords:DEVBIO
Issue or Number:1
Record Number:CaltechAUTHORS:20161201-153102867
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161201-153102867
Official Citation:Dan Li, Chang Liu, Lisha Shen, Yang Wu, Hongyan Chen, Masumi Robertson, Chris A. Helliwell, Toshiro Ito, Elliot Meyerowitz, Hao Yu, A Repressor Complex Governs the Integration of Flowering Signals in Arabidopsis, Developmental Cell, Volume 15, Issue 1, 8 July 2008, Pages 110-120, ISSN 1534-5807, http://dx.doi.org/10.1016/j.devcel.2008.05.002. (http://www.sciencedirect.com/science/article/pii/S1534580708001809)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72508
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:02 Dec 2016 02:21
Last Modified:09 Mar 2020 13:18

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