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The multifaceted roles of FLOWERING LOCUS T in plant development
Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). Umeå University, Faculty of Science and Technology, Department of Plant Physiology.
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).
2012 (English)In: Plant, Cell and Environment, ISSN 0140-7791, E-ISSN 1365-3040, Vol. 35, no 10, 1742-1755 p.Article in journal (Refereed) Published
Abstract [en]

One of the key developmental processes in flowering plants is the differentiation of the shoot apical meristem into a floral meristem. This transition is regulated through the integration of environmental and endogenous stimuli, involving a complex, hierarchical signalling network. In arabidopsis, the FLOWERING LOCUS T (FT) protein, a mobile signal recognized as a major component of florigen, has a central position in mediating the onset of flowering. FT-like genes seem to be involved in regulating the floral transition in all angiosperms examined to date. Evidence from molecular evolution studies suggests that the emergence of FT-like genes coincided with the evolution of the flowering plants. Hence, the role of FT in floral promotion is conserved, but appears to be restricted to the angiosperms. Besides flowering, FT-like proteins have also been identified as major regulatory factors in a wide range of developmental processes including fruit set, vegetative growth, stomatal control and tuberization. These multifaceted roles of FT-like proteins have resulted from extensive gene duplication events, which occurred independently in nearly all modern angiosperm lineages, followed by sub- or neo-functionalization. This review assesses the plethora of roles that FT-like genes have acquired during evolution and their implications in plant diversity, adaptation and domestication.

Place, publisher, year, edition, pages
2012. Vol. 35, no 10, 1742-1755 p.
Keyword [en]
florigen; gene duplication; mobile signal; molecular evolution; neo-functionalization; plant diversification; tuberigen
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:umu:diva-60642DOI: 10.1111/j.1365-3040.2012.02558.xISI: 000308395600004OAI: oai:DiVA.org:umu-60642DiVA: diva2:562974
Available from: 2012-10-26 Created: 2012-10-22 Last updated: 2017-12-07Bibliographically approved

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Pin, P. A.Nilsson, Ove
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