Multiple pathways in the decision to flower: Enabling, promoting, and resetting

Boss, Paul K., Bastow, Ruth M., Mylne, Joshua S. and Dean, Caroline (2004) Multiple pathways in the decision to flower: Enabling, promoting, and resetting. The Plant Cell, 16 Supp.: S18-S31. doi:10.1105/tpc.015958


Author Boss, Paul K.
Bastow, Ruth M.
Mylne, Joshua S.
Dean, Caroline
Title Multiple pathways in the decision to flower: Enabling, promoting, and resetting
Journal name The Plant Cell   Check publisher's open access policy
ISSN 1040-4651
1532-298X
Publication date 2004-06
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1105/tpc.015958
Volume 16
Issue Supp.
Start page S18
End page S31
Total pages 14
Place of publication Rockville, MD, U.S.A.
Publisher American Society of Plant Biologists
Language eng
Subject 0607 Plant Biology
Formatted abstract
At a certain point in their life cycle, annual plants undergo a major developmental transition and switch from vegetative to reproductive development. This process is rarely reversible, and ensuring that the timing of this transition is optimal for pollination and seed development is a major factor in reproductive success. Physiological and genetic analysis of flowering has shown that multiple environmental and endogenous inputs influence the timing of the switch. The molecular identity of these different inputs is being dissected using molecular genetic approaches in Arabidopsis. The multiple pathways quantitatively regulate an overlapping set of common targets, the floral pathway integrators, whose activities convert the shoot apical meristem to a reproductive fate. An emerging idea is that changing the predominance of these input pathways could account for much of the plasticity and diversity of flowering time control within and between plant species (Simpson and Dean, 2002). During the last few years, the data relevant to a molecular understanding of flowering time control have increased rapidly, making it unwieldy to comprehensively review the field. In addition, there have been numerous and excellent recent reviews on various aspects of flowering time control (Mouradov et al., 2002; Ratcliffe and Riechmann, 2002; Simpson and Dean, 2002; Henderson et al., 2003; Yanovsky and Kay, 2003). To complement these, we have chosen, in this review, to group genes involved in flowering time into pathways that enable the floral transition and those that promote it. We also discuss the role of genes defined through early-flowering mutants. Are they specific floral repressors or more global regulators needed to reset patterns of gene expression?
© 2004 American Society of Plant Biologists
Keyword Biochemistry & Molecular Biology
Plant Sciences
Cell Biology
Polycomb-group gene
MADS-box gene
Arabidopsis circadian clock
Locus-c activity
Molecular-basis
Floral transition
Shoot development
Phytochrome-b
Time control
Methyltransferase activity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Excellence in Research Australia (ERA) - Collection
Institute for Molecular Bioscience - Publications
 
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Created: Fri, 25 Jan 2008, 16:16:37 EST