Patterning and evolution of floral structures - marking time

Sarah McKim, Angela Hay

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The diversity of flowering structures dazzles the eye, dominates the landscape, and invites evolutionary questions regarding the development of such variety. Comparative work in a number of genetically tractable plant species has addressed how diverse floral architectures develop, and started to reveal the balance between conservation and divergence of the patterning mechanisms responsible for when and where flowers form on a plant. We highlight findings from Petunia where conserved LFY/UFO function is under species-specific regulation, and a novel mechanism involving WOX homeodomain proteins for modulating cyme development in diverse nightshades. We also draw attention to recent findings in Arabidopsis of miRNA and chromatin-based timing mechanisms controlling floral development, and illustrate how genetic studies in Arabidopsis relatives can reveal how evolutionary changes in such mechanisms generate diversity in form.

Original languageEnglish
Pages (from-to)448-53
Number of pages6
JournalCurrent Opinion in Genetics & Development
Issue number4
Publication statusPublished - Aug 2010


  • Arabidopsis
  • Flowers
  • Homeodomain Proteins
  • Lycopersicon esculentum
  • Meristem
  • Morphogenesis
  • Petunia
  • Plant Proteins
  • Signal Transduction
  • Time Factors
  • Journal Article
  • Research Support, Non-U.S. Gov't
  • Review

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