A new genetic marker called RUBY, engineered by scientists at the University of California, Riverside, provides a safer and more visible way to track gene expression, benefiting genetic research and potentially food safety.
The RUBY marker produces a vivid red pigment, similar to the betalain compounds found in beets. This offers a safer alternative to traditional antibiotic or herbicide resistance markers, which can harm test cells. RUBY acts as a non-destructive visual indicator, turning transformed cells a distinctive red color.
Researchers demonstrated RUBY's application by creating genetically modified mustard plants. These plants change color when exposed to the pesticide azinphos-ethyl. This could allow the food industry to use RUBY-modified plants as biosensors.
These biosensors could detect pesticide residues or other chemical contaminants in food production systems. This innovative marker holds significant value for enhancing food safety monitoring and genetic research practices.