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Related Experiment Video

Updated: Oct 20, 2025

Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits
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Synthetic directed evolution in plants: unlocking trait engineering and improvement.

Gundra Sivakrishna Rao1, Wenjun Jiang1, Magdy Mahfouz1

  • 1Laboratory for Genome Engineering and Synthetic Biology, Division of Biological Sciences, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.

Synthetic Biology (Oxford, England)
|September 15, 2021
PubMed
Summary

Synthetic directed evolution (SDE) uses gene editing to enhance crop traits for better yield and resilience. This approach accelerates the discovery of valuable plant characteristics, boosting food security.

Keywords:
CRISPR–Cas systemslocalized sequence diversification (LSD)prime editingretronssynthetic directed evolution (SDE)trait engineering

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Area of Science:

  • Plant science
  • Genetics
  • Biotechnology

Background:

  • Genetic variation is crucial for species adaptation and survival in changing environments.
  • Enhancing crop genetic diversity is vital for improving yield and ensuring food security.
  • Synthetic directed evolution (SDE) offers a powerful method to evolve gene variants with improved traits.

Purpose of the Study:

  • To highlight efficient SDE approaches for localized sequence diversification (LSD) in plant genes.
  • To discuss selection strategies and critical traits for targeted improvement in crops.
  • To explore the potential of emerging technologies for SDE in plants.

Main Methods:

  • Application of CRISPR-Cas-dependent and -independent technologies for LSD.
  • Utilizing emerging tools like CRISPR-Cas base editing, retron editing, EvolvR, and prime editing.
  • Employing T7 polymerase editor for continuous evolution strategies.

Main Results:

  • SDE accelerates the discovery and expansion of valuable traits in crop species.
  • Various LSD technologies enable the evolution of gene variants with enhanced fitness and desired phenotypes.
  • Emerging and independent technologies show promise for efficient SDE in plants.

Conclusions:

  • SDE technologies, including advanced gene editing tools, hold significant potential for improving valuable plant traits.
  • Addressing key challenges is essential for the successful application of SDE in crop improvement.
  • SDE can accelerate crop breeding and enhance agricultural sustainability.