SCIENCE

“Editing Mushroom Genes: A Game-Changer”

ChinaWed Jan 29 2025
Have you ever thought about changing a mushroom’s DNA? That’s exactly what scientists did with the Ganoderma lucidum mushroom. They used a powerful tool called CRISPR/Cas9 to slice into the mushroom’s genetic code. They tried adding different-sized pieces of new DNA, from tiny to large. What they found was surprising. Adding tiny segments called homologous arms made a huge difference. Without these additions, only 8 out of 184 attempts worked. But when they added the homologous arms, 122 out of 781 attempts were successful. This breakthrough could change farming and medicine by making it much easier to edit mushroom genes. Think about it this way. When you’re playing with building blocks, sometimes adding a tiny piece can make all the difference. That’s exactly what the homologous arms did for the mushrooms. They acted like those tiny blocks, helping the new DNA fit perfectly into the mushroom’s genetic code. This discovery is important because it means we can make mushrooms grow better or produce more beneficial compounds for medicine. It could even help make farming more sustainable. Imagine if we could make mushrooms grow faster or need less water. That would be a big win for the environment! But there are also questions to consider. What happens if we change the mushroom’s DNA too much? Could it have unintended consequences? It’s something scientists are keeping an eye on.