New research to future-proof Australian bananas against Fusarium wilt

A new research project is set to help safeguard banana crops from Fusarium wilt Tropical Race 4 (TR4) - a soil-borne disease that poses one of the greatest threats to global banana production.

The project, funded by Hort Innovation, will focus on using advanced genetic tools to speed up the development of banana varieties that can withstand this destructive disease. These tools, known as molecular markers, allow plant breeders to identify natural resistance traits early in the breeding process. This means more resilient varieties can be developed faster.

Delivered by the University of Queensland, researchers will investigate non-commercial banana lines that are naturally resistant to Fusarium wilt, with the aim of identification of the genetic basis of these resistance traits, converting this information into practical tools for breeding purposes. Building on previous work, the team will aim to develop new resistance markers and combine them with existing ones, giving breeders a more reliable way to develop varieties with long-lasting protection against evolving strains of the disease.

Anthony Kachenko, General Manager Sustainability and Production R&D at Hort Innovation said: “This research is critical for the long-term resilience of the Australian banana industry by giving breeders the ability to identify resistant plants early and accurately. Understanding the genetic basis of TR4 resistance in bananas will give the Australian industry greater surety that new banana lines have durable resistance to this devasting disease over time.”

The tools and information developed through this project will contribute to the global initiative to overcome the scourge of this disease that has significant effects on productivity and secure supply globally. Resistant plants mean fewer losses to TR4, more consistent yields, and greater confidence for growers investing in the future of their farms.

Elizabeth Aitken Professor in Plant Pathology at the University of Queensland said: “This project is laying the groundwork for the future of banana breeding. By identifying the genes behind Fusarium wilt resistance, researchers will open up new opportunities for innovation - ensuring the industry can access truly resistant banana varieties and continue delivering high yielding, reliable crops for years to come.”

This project (BA24004) is funded by Hort Innovation using the banana research and development levy and contributions from the Australian Government and builds on earlier findings from levy‑funded research (BA21000) to strengthen industry preparedness for both Tropical and Subtropical Race 4 across Australian banana production regions.