Creating artificial miR2118a/b to boost yield and broad-spectrum resistance in soybean via CRISPR/Cas9-targeted mutation.
Chen L, Ouyang W, Hu Y, Peng L, Chen P
Summary
PubMedWhy it matters This matters because it points toward soybeans (and potentially other crops) that need fewer pesticides and fungicides while producing more food, which could lower grocery prices and reduce chemical runoff into the soil and water near your home.
Researchers tweaked a tiny genetic switch inside soybean plants using a precise editing tool called CRISPR. By changing this switch, the plants naturally turned up their own defense systems and growth programs. The result: soybean plants that fought off bacterial infections and two types of harmful worms in the soil — and still grew bigger harvests — all without adding any foreign DNA to the plant.
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Scientists used CRISPR gene editing to create modified soybeans that are simultaneously more resistant to multiple diseases and pests — and produce higher yields — without introducing foreign genes into the plant.
Key Findings
CRISPR-edited soybeans showed enhanced resistance to three distinct threats simultaneously: a bacterial pathogen (Pseudomonas syringae), soybean cyst nematode, and root-knot nematode.
The edited plants achieved increased crop yield under normal field conditions compared to unedited wild-type plants, demonstrating that disease resistance and productivity gains can coexist.
The improved plants are transgene-free, meaning no foreign DNA was inserted — only the plant's own genetic sequence was modified, which may ease regulatory approval and public acceptance.
Abstract Preview
While regulatory functions of mature miRNAs are well established, the functions of miRNAs* and their potential for genetic engineering in crop improvement remain underexplored. Here, we used cluste...
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