Researchers in China have created gene-edited tomatoes that give off a popcorn-like scent.
Using CRISPR technology, scientists modified genes linked to aroma production, producing what they called highly fragrant tomato plants. The goal is to enhance flavor and smell, which often diminish after harvesting and transport.
The popcorn-like fragrance comes from elevated levels of 2-acetyl-1-pyrroline — a natural compound also responsible for the aroma of fragrant rice and buttered popcorn. To achieve this, researchers disabled two genes, SlBADH1 and SlBADH2, which normally limit the buildup of aromatic compounds.
As a result, the tomatoes developed a stronger scent without significant changes to yield or nutritional value. The team believes the technique could be applied to commercial varieties in the future, potentially leading to new tomatoes with richer, more complex flavors.