Tweaking genome-editing approaches for virus interference in crop plants

Area of Science:

• Agricultural Science
• Molecular Biology
• Plant Pathology

Background:

• Plant viruses pose a significant threat to global agriculture, with conventional control methods often proving insufficient against rapidly evolving strains.
• The development of virus-resistant crops is crucial for food security and sustainable agricultural practices.

Purpose of the Study:

• To review recent advancements in genome-editing technologies, particularly the CRISPR system, for developing virus-resistant plants.
• To discuss strategies for utilizing CRISPR/Cas9 to enhance plant immunity against both DNA and RNA viruses.

Main Methods:

• Review of current literature on CRISPR/Cas9 applications in plant virology.
• Analysis of CRISPR/Cas9's dual role in directly targeting viral genomes and modifying host susceptibility genes.
• Discussion of strategies for engineering plant resistance against single and multiple RNA viruses.

Main Results:

• The CRISPR/Cas9 system demonstrates significant potential for conferring plant immunity by directly cleaving viral DNA/RNA genomes.
• CRISPR technology can be employed to target host susceptibility genes, offering an alternative resistance strategy, especially for RNA viruses.
• Novel platforms are being developed to enhance the efficiency of CRISPR/Cas9 for combating diverse plant viruses.

Conclusions:

• CRISPR/Cas9 represents a promising and versatile genome-editing tool for developing robust plant resistance against a wide range of viral pathogens.
• Further research into CRISPR applications can overcome existing limitations and engineer effective interference against challenging single and multiple plant RNA viruses.
• The strategic application of CRISPR technology holds substantial promise for safeguarding crop yields and ensuring agricultural stability.