Gene Editing of a Susceptibility LncRNA Enhances Broad-Spectrum Disease Resistance in Rice without Developmental...

Area of Science:

• Genetics
• Plant Pathology
• Molecular Biology

Background:

• Crop resistance to pathogens is crucial but often linked to yield loss (trade-off effect).
• Genetic editing strategies aim to improve crop resilience.
• Susceptibility genes, including long non-coding RNAs (lncRNAs), are potential targets for enhancing resistance.

Purpose of the Study:

• To develop a novel strategy for enhancing broad-spectrum crop disease resistance without yield penalty.
• To identify and characterize a specific susceptibility lncRNA involved in pathogen response.

Main Methods:

• Identification of a pathogen-induced lncRNA, RESIS, involved in plant defense.
• Genomic editing of RESIS in cultivated rice.
• Analysis of RESIS function in pathogen response and its interaction with the NatA complex.

Main Results:

• RESIS, a susceptibility lncRNA, was identified and characterized.
• Editing RESIS enhanced broad-spectrum resistance to fungal and bacterial diseases.
• RESIS knockout conferred resistance without the typical growth inhibition associated with direct defense gene editing.

Conclusions:

• Susceptibility lncRNAs are viable targets for improving crop disease resistance.
• Editing RESIS offers a strategy to enhance crop immunity without compromising growth.
• This approach holds significant potential for practical crop breeding applications.