Engineered viruses could deliver gene edits straight into crops
Mehmood MA, Iqbal MM, Yin Y, Ashfaq M, Chen S
Crispr
The vegetables in your garden could one day be bred for drought or disease resistance in weeks instead of years, without the GMO label that makes some gardeners wary.
Researchers are repurposing plant viruses, normally something you'd want to keep out of your garden, as delivery trucks for gene-editing tools. Instead of permanently altering a plant's DNA the way traditional GMOs do, these viral vectors can switch genes on or off temporarily, making the edited trait heritable without leaving foreign DNA behind. The catch is scaling this from lab greenhouses to actual farm fields, which means figuring out how to spray or inject these viruses safely across acres of crops.
Key Findings
Viral vectors combined with CRISPR-Cas systems now enable virus-induced genome editing (VIGE), base editing, and prime editing for heritable trait changes without tissue culture
Deconstructed viral genomes and synthetic regulatory circuits have increased cargo capacity, target specificity, and biosafety compared to earlier virus-induced gene silencing (VIGS) tools
Field-scale deployment remains limited by host-range restrictions, environmental containment concerns, and the need for scalable delivery methods like nano-formulations or improved agroinfiltration
chevron_right Technical Summary
Scientists are engineering plant viruses to deliver gene-editing tools like CRISPR directly into crops, potentially allowing farmers to improve traits like drought tolerance without genetically modifying the plant's own DNA or using slow tissue culture methods.
Abstract Preview
Original paper
Transforming Plant Viruses into Vectors for Next-Generation Agriculture-A Review.
Plant viral vectors have evolved from tools for transient gene expression into a versatile platform for precise genetic intervention, offering a rapid, transgene-free alternative to conventional cr...
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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