![The Discovery Files show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/014/590/small/the-discovery-files.jpg)
Summary: Cassava, banana and plantain, staple foods for millions of the world's poorest people, are notoriously difficult to breed. But an international team of scientists aims to change that, using a revolutionary new approach to plant breeding developed at the University of California, Davis.