Next-generation genome editing: no transgene, no tissue culture.
Mahmood MA, Greenwood JR, Millar AA, Susila H
Summary
PubMedWhy it matters This matters because it could accelerate the development of crops that resist drought, disease, and pests — meaning more reliable harvests, lower food prices, and plants better suited to a changing climate, without the regulatory baggage of traditional GMOs.
Right now, when scientists want to improve a plant — say, make wheat resistant to a new fungus — they usually have to insert a bit of foreign DNA and grow new plants from single cells in a lab, which is slow and tricky. Researchers are now finding ways to skip both of those steps by shooting tiny particles directly into plant tissue or using modified viruses to deliver the editing instructions. This could make it much faster and easier to develop improved crops and garden plants.
chevron_right Technical Details
Scientists are developing new ways to edit plant DNA without inserting foreign genes or growing plants in a lab dish first — two major hurdles that have slowed the use of gene editing in agriculture. Techniques using gene guns and plant viruses as delivery tools could make precision plant breeding faster, cheaper, and more widely accessible.
Key Findings
Transgene insertion (adding foreign DNA) is a major bottleneck limiting the real-world adoption of plant gene editing.
Tissue culture — growing plants from individual cells in a lab — is a second major bottleneck that slows and complicates the editing process.
Particle bombardment and viral vector delivery are emerging as promising methods to bypass both bottlenecks and enable direct, in-plant genome editing.
Abstract Preview
New approaches to engineering plant genomes have the potential to improve agriculture. However, transgenes insertion and tissue culture have become bottlenecks to genome-editing technology becoming...
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