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Peptide-derived Method to Transport Genes and Proteins Across Cellular and Organellar Barriers in Plants
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Peptide-derived Method to Transport Genes and Proteins Across Cellular and Organellar Barriers in Plants

Published on: December 16, 2016

Nontransgenic genome modification in plant cells.

Ira Marton1, Amir Zuker, Elena Shklarman

  • 1Danziger Innovations Ltd., Mishmar Hashiva Village, Beit Dagan, Israel.

Plant Physiology
|September 30, 2010
PubMed
Summary

This study introduces a new, nontransgenic method for plant genome editing using Tobacco Rattle Virus (TRV) to deliver Zinc Finger Nucleases (ZFNs). This approach enables efficient production of ZFN-induced mutants without direct plant transformation.

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Area of Science:

  • Plant Biotechnology
  • Molecular Biology
  • Genetics

Background:

  • Zinc finger nucleases (ZFNs) are key tools for genome editing in eukaryotes.
  • Traditional plant genome editing often relies on stable transformation, which can result in transgenic classifications.
  • A nontransgenic method for ZFN delivery is needed to overcome these limitations.

Purpose of the Study:

  • To develop a novel, nontransgenic approach for ZFN delivery in plants.
  • To utilize a Tobacco Rattle Virus (TRV)-based system for indirect transient ZFN delivery.
  • To produce ZFN-mediated mutants in plants without direct gene transfer.

Main Methods:

  • A TRV-based expression system was engineered for ZFN delivery into intact plants.
  • TRV was used to systemically infect tobacco and petunia plants.
  • Mutagenesis was assessed by reporter gene activation and confirmed by sequence analysis.

Main Results:

  • Virus-mediated ZFN delivery resulted in targeted mutagenesis in newly infected tissues.
  • Mutations were observed in tobacco (Nicotiana tabacum) and petunia (Petunia hybrida) plants.
  • The TRV system enabled recovery of mutated plants, with mutations transmitted to the next generation.

Conclusions:

  • The TRV-based system provides an effective, nontransgenic method for ZFN delivery and plant mutagenesis.
  • This approach avoids direct plant transformation, simplifying the process and classification of mutants.
  • The RNA virus system's broad host range offers a viable alternative for producing ZFN-mediated mutants across diverse plant species.