Multiple roles of Arabidopsis VRN1 in vernalization and flowering time control

Science. 2002 Jul 12;297(5579):243-6. doi: 10.1126/science.1072147.

Abstract

Arabidopsis VRN genes mediate vernalization, the process by which a long period of cold induces a mitotically stable state that leads to accelerated flowering during later development. VRN1 encodes a protein that binds DNA in vitro in a non-sequence-specific manner and functions in stable repression of the major target of the vernalization pathway, the floral repressor FLC. Overexpression of VRN1 reveals a vernalization-independent function for VRN1, mediated predominantly through the floral pathway integrator FT, and demonstrates that VRN1 requires vernalization-specific factors to target FLC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Arabidopsis / anatomy & histology
  • Arabidopsis / genetics*
  • Arabidopsis / growth & development
  • Arabidopsis / physiology*
  • Arabidopsis Proteins / chemistry
  • Arabidopsis Proteins / genetics*
  • Arabidopsis Proteins / metabolism
  • Arabidopsis Proteins / physiology*
  • Base Sequence
  • Cloning, Molecular
  • DNA, Plant / genetics
  • DNA, Plant / metabolism
  • DNA-Binding Proteins / chemistry
  • DNA-Binding Proteins / genetics*
  • DNA-Binding Proteins / physiology*
  • Down-Regulation
  • Gene Expression Regulation, Plant
  • Genes, Plant
  • MADS Domain Proteins / genetics
  • MADS Domain Proteins / metabolism
  • Molecular Sequence Data
  • Mutation
  • Photoperiod
  • Plant Proteins / genetics
  • Plant Proteins / metabolism
  • Plant Structures / anatomy & histology
  • Plant Structures / physiology
  • Plants, Genetically Modified
  • Protein Binding
  • Recombinant Fusion Proteins / metabolism
  • Repressor Proteins*
  • Temperature

Substances

  • AGL20 protein, Arabidopsis
  • Arabidopsis Proteins
  • DNA, Plant
  • DNA-Binding Proteins
  • FLF protein, Arabidopsis
  • FT protein, Arabidopsis
  • MADS Domain Proteins
  • Plant Proteins
  • Recombinant Fusion Proteins
  • Repressor Proteins
  • VRN1 protein, Arabidopsis