Beyond CRISPR/Cas9: emerging genome editing technologies for next-generation crop improvement.
Deres D, Terefe M
Crispr
The wheat in your bread and the vegetables in your garden could soon be grown from varieties engineered to survive drought and disease with far greater precision than ever before — meaning more reliable harvests and more nutritious food as the climate becomes less predictable.
Scientists have created a whole toolkit of new gene-editing technologies that go well beyond the famous CRISPR tool most people have heard of. Some of these newer tools can swap out a single letter in a plant's genetic code, or slip in a tiny piece of new information, without making risky cuts through both strands of the DNA double helix — making the edits much cleaner and safer. By layering these tools together and using artificial intelligence to help choose the best targets, researchers can now redesign entire biological pathways in crops to make them stronger, more nutritious, and higher-yielding.
Key Findings
New CRISPR variants — including Cas12a, CasΦ, CasMINI, and CasX — expand the range of DNA sites that can be targeted and perform better in plant genomes that were previously difficult to edit.
Base editors and prime editors achieve precise single-nucleotide changes and small insertions without severing both DNA strands, substantially reducing off-target mutations compared to standard CRISPR/Cas9 cuts.
Stepwise and combined editing strategies, integrated with AI-driven target prediction and design optimization, enable improvement of complex multi-gene traits such as stress tolerance, disease resistance, nutritional quality, and post-harvest shelf life.
chevron_right Technical Summary
Scientists are developing a new generation of gene-editing tools that go beyond the original CRISPR/Cas9 system, offering greater precision, fewer errors, and the ability to tackle complex multi-gene traits in crops. Combined with AI-driven design, these tools are accelerating the development of crops with better stress tolerance, disease resistance, improved nutrition, and higher yields.
Abstract Preview
Genome editing has changed plant biology and accelerated crop improvement. CRISPR/Cas9 allows precise and efficient genetic changes in many species. Still, Cas9 has limits like PAM restrictions, of...
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