Hash, hash. and rehash. As already said, the video proves absolutely nothing, just that two banana plants are growing in the same pot. Pups that come off of the Musa basjoo side will still be M. basjoo. Pups that come off of the other side will be whatever that cultivar is. It's physiologically possible for the corms to fuse and grow together, and even possible for some cellular transfer to occur. However...no meiosis is taking place, so no DNA transfer is happenening. That's why there is no proof in these videos.
Where was everybody's comments when I was trying to denounce this in the other thread???
Frank