Speaking with NintendoGal, Nintendo of America's Amber McCollom discussed Wii U's backwards compatibility options.
"Nintendo's history usually goes back one system," McCollom explained. "The Wii was compatible with GameCube and Wii U will be compatible with Wii and that's pretty traditional in launches from Nintendo.
"Actually the GameCube discs will not be compatible with Wii U, but a number of the games that were playable on GameCube can be downloaded from WiiWare."
Currently, no GameCube titles are available to download through WiiWare, meaning McCollom could be hinting at future downloadable titles that will be compatible with Wii U.
Select GameCube titles have also been re-released on Wii, including Pikmin, Donkey Kong Jungle Beat and Resident Evil Zero.
The Wii U will be available worldwide in 2012.
> Read our hands-on impressions of the Wii U
> Full Wii U coverage