Jun 16, 2012

The multifaceted roles of FLOWERING LOCUS T in plant development

Plant, Cell & Environment
P A Pin, Ove Nilsson

Abstract

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 asses...Continue Reading

Mentioned in this Paper

Plant Carpals
Arabidopsis
Meristem
Gene Expression Regulation, Plant
Cell Differentiation Process
Liliopsida
Root Tip
Arabidopsis thaliana Proteins
Plant Development
Angiosperms

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