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FT, a mobile developmental signal in plants.

Philip A Wigge1

  • 1John Innes Centre, Colney Lane, Norwich NR4 7UH, UK. philip.wigge@bbsrc.ac.uk

Current Biology : CB
|May 10, 2011
PubMed
Summary
This summary is machine-generated.

Plants use the FLOWERING LOCUS T (FT) gene to signal flowering from leaves to the shoot apex. This conserved gene is crucial for seasonal timing and other plant developmental processes like dormancy.

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Area of Science:

  • Plant biology
  • Molecular genetics
  • Developmental biology

Background:

  • Plants regulate flowering time based on seasonal cues to optimize reproductive success.
  • Environmental sensing occurs in leaves, but flowering is initiated at the shoot apex, necessitating long-distance signaling.
  • The FLOWERING LOCUS T (FT) gene is a conserved component of the mobile flowering signal, florigen.

Purpose of the Study:

  • To explore the role of the FLOWERING LOCUS T (FT) gene in plant development.
  • To understand the mechanism of florigen transport and its regulation.
  • To investigate FT's involvement beyond flowering, such as in dormancy and bud burst.

Main Methods:

  • Analysis of the FLOWERING LOCUS T (FT) gene and its protein product.
  • Study of FT gene expression regulation by environmental signals.
  • Investigation of FT protein translocation through the plant phloem.

Main Results:

  • The FT gene encodes a mobile protein (florigen) that travels from leaves to the shoot apex.
  • FT expression is controlled by complex regulatory networks responding to environmental cues.
  • FT plays a conserved role in seasonal flowering time and other developmental processes.

Conclusions:

  • The FT gene is a key, conserved mobile signal regulating flowering time in plants.
  • FT's function extends to other critical developmental processes, including dormancy and bud burst.
  • Understanding FT regulation is vital for crop improvement and predicting plant responses to environmental change.