Where Did Hoya australis ‘Lisa’ Come From?

Hoya australis ‘Lisa’ definitely was not created in nature. Hoya australis ssp. tenuipes was taken and somehow its genes were manipulated with chemicals ,and, or radiation to create this variegated wonder. All I know about it was that it came into the trade around 2004, or 2005 and started the entire variegated Hoya craze.