Banana Fusarium Wilt Resistance Gene Discovery

Scientists at the University of Queensland have identified a genomic region on chromosome 5 in wild bananas (Calcutta 4) that controls resistance to Sub Tropical Race 4 (STR4), a virulent strain of Panama disease. This fungal disease has severely impacted global banana supplies, causing significant in-field losses and costing nations hundreds of millions of dollars. The five-year project involved crossing wild resistant bananas with susceptible varieties and comparing their DNA. This discovery, published in List of Nature Research journals, is a crucial step towards developing new banana varieties that are naturally protected from Panama disease, a long-term and sustainable solution to a pathogen that has threatened the $140 billion industry. The next step involves developing molecular markers to efficiently track this resistance, speeding up the breeding process for commercially viable, disease-resistant bananas. Fresh Del Monte Produce and other suppliers are actively working to protect the industry, which is vital for the livelihoods of over 400 million people.