Scientists rewrite crop genes to fight off plant diseases
Maharajan T, Ceasar SA, Thakur NR, Ahmad A
Crispr
The tomatoes, wheat, and rice that fill your grocery store and local farms lose huge chunks of yield to blight and rot every year, and this review maps out how gene editing could make those crops naturally tougher without spraying more chemicals.
Researchers reviewed how scientists use precise gene-editing tools, especially CRISPR, to tweak specific genes in crop plants that control how they fight off disease. Some edits remove genes that pathogens exploit to infect the plant, while others boost the plant's own immune defenses, and the review weighs the tradeoffs, like unwanted side effects on plant growth, along with the rules and ethics around growing these edited crops.
Key Findings
CRISPR/Cas systems are being used to edit three gene categories: susceptibility genes that pathogens exploit, resistance genes that trigger immunity, and broader immune-signaling networks
Editing susceptibility genes can raise disease resistance but sometimes causes pleiotropic effects and fitness costs, such as reduced growth or yield
Emerging strategies include CRISPR-based transcriptional regulation and de novo domestication, plus AI-driven tools for identifying gene targets and designing guide RNAs
chevron_right Technical Summary
Scientists are using gene-editing tools like CRISPR to rewrite plant DNA so crops can better resist bacteria, fungi, and viruses, potentially cutting the massive crop losses diseases cause worldwide every year.
Abstract Preview
Original paper
Genome editing of susceptibility and resistance genes for engineering disease-resistant crops: recent advances, challenges and future prospects.
Plant diseases caused by bacterial, fungal, oomycete, and viral pathogens remain a major constraint to crop productivity worldwide. Recent advances in genome-editing technologies have enabled preci...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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Crop-improvement refers to the systematic enhancement of plant varieties through selective breeding, genetic modification, and biotechnological approaches to develop cultivars with superior agronomic, nutritional, or environmental traits. This field is essential for addressing global food security,
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