coral glow came from what was known as a "White Smoke" if i am not mistaken. And they have never been able to produce the original animal since. Its a single gene but seems to be a very odd one and with the color mutation it seems there could be a chance it is sex linked.
http://newenglandreptile.com/nerd/in...oral-glow.html
http://www.youtube.com/watch?v=fkVEgGqWnmc