Jellyfish genes have been used to “tag” Feline Immunodeficiency virus (FIV) resistant cats bred in a laboratory. FIV is the feline equivalent of aids and these cats can be used to study FIV resistance and gain insights into fighting HIV and AIDS. The original FIV resistant gene was derived from Rhesus Macaques and inserted into this line of cats along with the Jellyfish gene for luminesense, so that cats carrying the gene would also glow when exposed to black light.
So far the gene has bred true and showed no negative effects on the effected felines. With luck the studies of these cats will result in studies that move AIDS and HIV prevention forward.
And no. You can’t have a glowing cat for a pet. They don’t sell them.