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Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes
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Epigenetic reprogramming during vegetative phase change in maize.

Hong Li1, Michael Freeling, Damon Lisch

  • 1Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA.

Proceedings of the National Academy of Sciences of the United States of America
|December 8, 2010
PubMed
Summary
This summary is machine-generated.

Plant development involves a crucial transition from juvenile to adult stages, impacting reproductive competence and transposon regulation. A key RNA silencing pathway component

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Area of Science:

  • Plant biology
  • Epigenetics
  • Molecular biology

Background:

  • Plant development involves a transition from juvenile to adult phases, which is essential for reproductive competence.
  • Transposons pose a significant risk to the germ line, necessitating strict regulation during development.

Purpose of the Study:

  • To investigate the relationship between vegetative phase change and the epigenetic regulation of transposons in maize.
  • To identify key molecular players involved in coordinating these developmental processes.

Main Methods:

  • Analysis of gene expression changes during plant development.
  • Monitoring of transposon epigenetic states in relation to developmental transitions.
  • Focus on components of the RNA silencing pathway.

Main Results:

  • A significant change in the expression of a critical RNA silencing pathway component was observed.
  • This change in gene expression correlates with both vegetative phase change and altered epigenetic regulation of a maize transposon.

Conclusions:

  • The RNA silencing pathway plays a coordinated role in regulating both plant phase change and transposon activity.
  • This highlights a conserved mechanism for maintaining genome stability during plant development.