Relearning our ABCs: new twists on an old model

Trends Plant Sci. 2001 Jul;6(7):310-6. doi: 10.1016/s1360-1385(01)01987-2.

Abstract

Over the past decade, the ABC model of flower development has been widely promulgated. However, correct flower-organ development requires not only the ABC genes but also the SEPALLATA genes. When the SEPALLATA genes are expressed together with the ABC genes, both vegetative and cauline leaves are converted to floral organs. Most of the ABC genes and all three SEPALLATA genes encode MADS transcription factors, which bind to DNA as dimers. Here, amendments to the ABC model are considered that incorporate both the SEPALLATA genes and the ability of MADS proteins to form higher-order complexes.

Publication types

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

MeSH terms

  • ATP-Binding Cassette Transporters / genetics*
  • ATP-Binding Cassette Transporters / physiology
  • Arabidopsis Proteins*
  • Bacterial Proteins / genetics*
  • Bacterial Proteins / physiology
  • Cell Differentiation
  • DNA-Binding Proteins / genetics*
  • DNA-Binding Proteins / physiology
  • Genes, Plant*
  • Homeodomain Proteins / genetics*
  • Homeodomain Proteins / physiology
  • MADS Domain Proteins
  • Models, Biological
  • Phenotype
  • Plant Development
  • Plant Physiological Phenomena
  • Plant Proteins / genetics
  • Plant Proteins / physiology
  • Plant Structures / genetics*
  • Plant Structures / growth & development
  • Plants / genetics*
  • Reproduction
  • Transcription Factors / genetics*
  • Transcription Factors / physiology

Substances

  • ATP-Binding Cassette Transporters
  • Arabidopsis Proteins
  • Bacterial Proteins
  • DNA-Binding Proteins
  • Homeodomain Proteins
  • MADS Domain Proteins
  • Plant Proteins
  • SEP3 protein, Arabidopsis
  • Transcription Factors