A developmental switch sufficient for flower initiation in diverse plants

Nature. 1995 Oct 12;377(6549):495-500. doi: 10.1038/377495a0.


We have generated transgenic plants in which the flower-meristem-identity gene LEAFY of Arabidopsis is constitutively expressed. LEAFY is sufficient to determine floral fate in lateral shoot meristems of both Arabidopsis and the heterologous species aspen, with the consequence that flower development is induced precociously. Our results also suggest a new level of regulation during flower development, as indicated by the competence of the main shoot to respond to LEAFY activity.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Arabidopsis / genetics
  • Arabidopsis / growth & development*
  • Arabidopsis Proteins*
  • Cell Differentiation / genetics
  • DNA-Binding Proteins / genetics
  • Genes, Plant*
  • Genes, Switch*
  • Homeodomain Proteins*
  • MADS Domain Proteins
  • Photoperiod
  • Plant Proteins / genetics
  • Plants, Genetically Modified
  • Transcription Factors*
  • Trees / genetics
  • Trees / growth & development


  • AP1 protein, Arabidopsis
  • Arabidopsis Proteins
  • DNA-Binding Proteins
  • Homeodomain Proteins
  • LFY protein, Arabidopsis
  • MADS Domain Proteins
  • Plant Proteins
  • Transcription Factors