Something interesting I found, but it doesn't cite a source:
"Already in the 1930s Musa basjoo was crossed with Musa 'Mysore' successfully. In each of the 10 bunches was one seed found, total 10 seeds were found and 5 of them were germinated and yielded viable and healthy plants. This cross seemed never introducted to the market and also never tested as hardy fruit banana."
Bananas Raras