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Related Experiment Video

Updated: Jun 27, 2026

Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development
10:08

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Published on: March 5, 2017

A conserved molecular framework for compound leaf development.

Thomas Blein1, Amada Pulido, Aurélie Vialette-Guiraud

  • 1Laboratoire de Biologie Cellulaire, Institut Jean Pierre Bourgin, Institut National de la Recherche Agronomique (INRA), 78026 Versailles Cedex, France.

Science (New York, N.Y.)
|December 20, 2008
PubMed
Summary
This summary is machine-generated.

NAM/CUC boundary genes are crucial for leaf shape diversity. Suppressing these genes in eudicots results in fewer, fused leaflets and suppressed marginal outgrowths, impacting leaf development.

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Area of Science:

  • Plant developmental genetics
  • Evolutionary biology
  • Comparative genomics

Background:

  • Leaf shape diversity arises from variations in leaf margins, such as serrations, lobes, and leaflets.
  • The genetic mechanisms underlying the formation of these diverse leaf structures are not fully understood.

Purpose of the Study:

  • To investigate the role of NAM/CUC boundary genes in the development of leaf marginal outgrowths and leaflet formation.
  • To explore the conserved function of these genes across different eudicot species.

Main Methods:

  • Gene silencing techniques and mutant analyses were employed.
  • Experiments were conducted across four distantly related eudicot species.

Main Results:

  • Reducing NAM/CUC gene function led to the suppression of all marginal outgrowths.
  • Fewer leaflets were formed, and existing leaflets were fused in the analyzed species.
  • A boundary domain promoted by NAM/CUC genes was identified, with a dual role in leaflet separation and formation.

Conclusions:

  • NAM/CUC genes are essential for promoting boundary domains that delimit leaflets and control leaf margin development.
  • These boundary domains play a critical role in both local leaflet separation and distant leaflet formation.
  • The developmental roles of these boundaries in plants show parallels with boundary functions in animal development.