The reason I ask is that the Cavendish banana is doomed. Bananapocalypse started in the same area where bananas evolved, southeast Asia; of course there is a correlation, the place where bananas evolved is where all its pathogens and parasites are there evolving right along with it. So Fusarium oxysporum as the fungus is known has wiped out all Cavendish bananas in Malaysia, Taiwan, Indonesia, and Australia; it is expected that there will be no more of this banana by 2013. Once a plot has been contaminated it can't be used to produce bananas again for 30 years. It takes from 9 months to 3 years for the infestation to show; it travels dirt, weeds, water... it is carried on the shoes of workers and so on.
the Cavendish is seedless - well, almost they strained 400 tons of bananas and managed to get about 13 seeds so cross-breeding into a new species is out. Europe will not accept GMO foods and there is breed of banana waiting for its time - the last time this happened was in the 1960 with Gros Michel (Big Michael) banana blight. If you have ever had a 'real' banana you know that the seeds are huge and run the length of the banana right down the center.
Such is the problem with monocultures. There is a variety called 'goldfinger' but it does not travel as well after harvest.