Cavendish bananas are not identical clones, but carry a hidden barcode of mutations that tracks their journey around the globe.
Cavendish bananas account for nearly all international exports, and for decades, everyone assumed they were genetically identical copies of a single plant. Naturally occurring changes in their DNA act as a family tree that reveals the specific history of every plantation. These mutations prove the banana is slowly evolving even without sexual reproduction. This genetic map allows farmers to trace the origin of specific fruit batches and understand how the fruit adapts to different climates. Knowing these genetic paths is a key step to protect the industry from a single disease wiping out every banana on Earth.
Somatic mutations trace the global spread and microevolution of Cavendish bananas
research_square · rs-9199400
Abstract Bananas (Musa spp.) are among the earliest domesticated fruit crops, with a cultivation history spanning nearly 10,000 years. Among the hundreds of banana cultivars, the clonally propagated triploid Musa acuminata Cavendish subgroup now dominates global trade (~95%), following the mid-20th-century devastation of Gros Michel bananas by Fusarium wilt (Panama disease). Despite its global ubiquity, the origin, dissemination history, and genomic microevolution of Cavendish bananas remain poo