Gene-edited CRISPR mushroom escapes US regulation

The US Department of Agriculture (USDA) will not regulate a mushroom that has been genetically modified with the gene-editing tool CRISPR–Cas9, the agency has confirmed. The long-awaited decision means that the mushroom can be cultivated and sold without passing through the agency’s regulatory process — making it the first CRISPR-edited organism to receive a green light from the US government.

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