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Published on: August 25, 2018
Compact Cas12 Systems for Multiplex Engineering of Plant Abiotic-Stress Networks
Samar G Thabet1, Khairiah Mubarak Alwutayd2, Amr Elkelish3
1Department of Botany Faculty of Science Fayoum University Fayoum Egypt.
Advanced Genetics (Hoboken, N.J.)
|July 17, 2026
Summary
Compact CRISPR-Cas12 systems offer efficient plant genome engineering by enabling precise control over abiotic stress responses. These advanced tools facilitate crop improvement through multiplex editing and transcriptional regulation, paving the way for enhanced resilience.
Area of Science:
- Plant biotechnology
- Genome engineering
- Molecular biology
Background:
- Compact CRISPR-Cas12 nucleases (e.g., Cas12f, Cas12j/CasPhi, Cas12lambda) are vital for plant genome engineering due to their small size, facilitating delivery via viral vectors and enabling multiplex gene editing.
- Their potential extends beyond simple gene modification to sophisticated regulation of plant abiotic stress defense mechanisms, including ion homeostasis, redox balance, osmotic adjustment, and hormone signaling.
Purpose of the Study:
- To evaluate the current state and future potential of compact CRISPR-Cas12 systems for crop improvement.
- To differentiate between established applications and emerging possibilities in plant genome engineering.
- To outline a roadmap for leveraging these tools to enhance crop resilience to environmental stresses.
Main Methods:
- Review and synthesis of existing research on compact Cas12 effectors in plant systems (stable transformation, transient assays, protoplasts).
- Comparison of Cas12f, Cas12j/CasPhi, and Cas12lambda with established systems like Cas9 and Cas12a.
- Analysis of evidence for multiplex editing, transcriptional control, and base editing capabilities.
Main Results:
- Cas12a is a mature platform for multiplex editing and transcriptional repression in plants.
- Cas12f shows promise as a mini-editor with demonstrated viral delivery, while Cas12j/CasPhi offers hypercompact editing and base editing potential.
- Cas12g, Cas12h, and Cas12lambda require further validation for plant applications.
Conclusions:
- Compact Cas12 systems are poised to complement Cas9 and Cas12a, enabling advanced applications like promoter engineering and transient gene regulation.
- Realizing their full potential for crop improvement hinges on enhancing efficiency, fidelity, and delivery strategies while addressing regulatory considerations for transgene-free crops.
