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Development of Protoplast-Based Gene Editing System for Areca Palm.

Hao Nie1,2, Saira Batool1,2, Yin Min Htwe1

  • 1National Key Laboratory for Tropical Crop Breeding/Coconut Research Institute/Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya 572025, China.

Plants (Basel, Switzerland)
|April 23, 2025
PubMed
Summary

Researchers developed an efficient protoplast-based transformation and gene editing system for areca palm (Areca catechu L.). This breakthrough aids genetic improvement and gene function verification in this vital tropical crop.

Keywords:
AcPDSCRISPR/Cas9PEG-mediated transformationareca palmprotoplastsubcellular localization

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Area of Science:

  • Plant Biotechnology
  • Molecular Biology
  • Crop Science

Background:

  • Areca palm (Areca catechu L.) is a crucial economic crop in tropical and subtropical areas.
  • Existing genetic improvement methods are hindered by the lack of efficient transformation and gene editing systems.

Purpose of the Study:

  • To establish an efficient transformation and gene editing system for areca palm using protoplasts.
  • To enable gene function verification and genetic improvement in areca palm.

Main Methods:

  • Isolation of high-yield, viable protoplasts from juvenile areca palm leaves.
  • Polyethylene glycol (PEG)-mediated transformation of protoplasts using the CRISPR/Cas9 system targeting the AcPDS gene.
  • Subcellular localization studies using GFP and pNLS-mCherry cotransformation.
  • Assessment of gene editing efficiency via Hi-TOM sequencing.

Main Results:

  • Successfully isolated protoplasts with high yield (9.08 × 10^6 cells/g FW) and viability (91.57%).
  • Achieved a transformation efficiency of 11.85% using optimized PEG-mediated conditions.
  • Detected a gene editing efficiency of 2.82% for the AcPDS gene.
  • Established subcellular localization of targeted proteins.

Conclusions:

  • An efficient protoplast-based transformation and CRISPR/Cas9 gene editing system has been successfully established for areca palm.
  • This system provides a valuable tool for gene function studies and genetic enhancement of areca palm.
  • The methodology holds potential for application in other tropical palm crops.