Norman C. Ellstrand, distinguished professor of genetics at the University of California, Riverside where he holds the Jane S. Johnson Endowed Chair in Food and Agriculture, writes:
Of the important global crops, the banana is the most genetically uniform. A single cluster of nearly identical genotypes, the Cavendish subgroup, nearly monopolizes the world’s banana groves and banana trade. In contrast to the riotous rainbow of genetic diversity that lends sustainability to natural plant and animal populations, the world’s banana industry has the stability of an upside-down Egyptian pyramid balanced on its tip.
That fact leads to another superlative: The commercial banana is the world’s most endangered major crop. The future of the intercontinentally traded banana was once, and is again, precarious. Given that their wild progenitors are as variable as most species, how has it come to pass that most of the banana plants growing in the world have become so uniform? And what does that uniformity mean for their future as the “world’s most perfect food”? Read more