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Title: A Repressor Complex Governs the Integration of Flowering Signals in Arabidopsis
Authors: Li, D.
Liu, C.
Shen, L.
Wu, Y.
Chen, H.
Robertson, M.
Helliwell, C.A.
Ito, T. 
Meyerowitz, E.
Yu, H. 
Keywords: DEVBIO
Issue Date: 8-Jul-2008
Citation: Li, D., Liu, C., Shen, L., Wu, Y., Chen, H., Robertson, M., Helliwell, C.A., Ito, T., Meyerowitz, E., Yu, H. (2008-07-08). A Repressor Complex Governs the Integration of Flowering Signals in Arabidopsis. Developmental Cell 15 (1) : 110-120. ScholarBank@NUS Repository.
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. © 2008 Elsevier Inc. All rights reserved.
Source Title: Developmental Cell
ISSN: 15345807
DOI: 10.1016/j.devcel.2008.05.002
Appears in Collections:Staff Publications

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