CRISPR or the truly white button mushroom

CRISPR or the truly white button mushroom

CRISPR or the truly white button mushroom

CRISPR Cas9

White button mushrooms are in every grocery store around the world. As inexpensive as they may be, they have a flaw: they bruise easily, which makes them less attractive. In 2015, a Penn State University researcher, Yinong Yang, turned to the U.S. Department of Agriculture for approval to market an altered strain of the species. The researcher had neutralized a few base pairs of DNA from the genome of the fungus, the pairs producing the enzyme responsible for browning.

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