CRISPR Base Editing Creates Herbicide-Tolerant Rice Without Transgene Integration
Shimatani Z, Kashojiya S, Nishida K
Crispr
It could lead to herbicide-tolerant rice and other crops that regulators classify as non-GMO, potentially reaching your grocery store or local farm faster and with less controversy than traditional GMO crops.
Researchers tweaked a single gene in rice that controls how the plant processes certain weed-killers, making the rice survive herbicide spraying that would normally kill it. The trick is they didn't add any DNA from another organism — they just made a tiny, precise change to the rice's own genetic code, the same kind of change that can happen naturally. Because no foreign genes were added, this edited rice may not even count as genetically modified under laws in many countries.
Key Findings
Cytosine base editing of the ALS gene produced herbicide-tolerant rice with zero foreign DNA integration
Edited rice lines were molecularly indistinguishable from naturally occurring ALS mutant plants
Base-edited crops may qualify as non-GMO under regulations in multiple jurisdictions, smoothing the path to commercialization
chevron_right Technical Summary
Scientists used a precise gene-editing technique to make rice resistant to certain herbicides, without inserting any foreign DNA — meaning the plants are molecularly identical to ones that could arise naturally.
Abstract Preview
Cytosine base editing of acetolactate synthase (ALS) in rice produced herbicide tolerance without any foreign DNA integration. Edited lines were indistinguishable from natural ALS mutants at the mo...
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