Bridging continents with yams

27 October 2025

A collaboration between The University of Queensland and the Gimuy Walubara Yidinji Indigenous community of Far North Queensland has led to a visit to Africa to explore opportunities for advancing the future of Australian yams.

 IITA
Roy Gray, Prof Yasmina Sultanbawa, Tracy Gray and Samson Olumide Fawale on site in Nigeria. Image: IITA

Nigerian-born UQ PhD candidate Samson Olumide Fawale was the motivation for Professor Yasmina Sultanbawa and Yidinji community members Tracy Gray and Roy Gray to visit the International Institute of Tropical Agriculture (IITA) in Nigeria.

“Nigeria is the largest producer of yams in the world, and as a Nigerian, I thought this was a perfect opportunity for Australia to learn from their success,” Mr Fawale said.

His research at the Queensland Alliance for Agriculture and Food Innovation has identified the nutritional properties of Australian yams, which are the edible roots of a climbing plant that Indigenous communities have eaten for generations.

“Now that I know more about the composition of the Australian yams, the next area will concentrate on breeding and propagation.

“The easiest and fastest way to go about this is to learn from the people (IITA-Nigeria) who have been researching yams for six decades. 

"IITA is one of 15 centres of CGIAR, the world’s largest global agricultural innovation network.

 IITA
Learning how to prepare yam seedlings in Nigeria. Image: IITA

“Travelling to Nigeria to see and learn what IITA has done in the area of yam breeding and production was an opportunity to learn about the different techniques of growing yams, and to understand the business side from a country where yams are a staple food,” he said.

“There is a need to understand how breeding would improve the nutritional quality of the Australian yam species, and to be able to advise which variety would best suit which climate (based on the soil type) in Australia and the corresponding food quality of the yams.

“IITA’s mind-blowing success with yams is something we hope to mirror in Australia.”

Inspired by the trip, the Grays have begun growing hundreds of yam plants of different varieties on country near Cairns to create a sustainable business that supplies their community with native food.

“The varieties we are planting are from wild harvested yams planted by our fathers many years ago,” Miss Gray said.

“Our trip to Nigeria with UQ ignited a fire in us to try this new venture and to see where it takes us.

 IITA
Yam food product samples produced in Nigeria. Image: IITA

“It’s very important for us to reignite the passion for yams with our people.

“While we are reviving our traditional languages and culture, we want to revive interest in our traditional food - the yam.

“We can combine ancient knowledge with the science on its nutritional benefits.”

Mr Fawale said the Yidinji project was just a start, with plans to expand the Australian program through a collaborative research partnership with IITA.

“We would like to work with food scientists, breeders and end users, as well as investigate other root and tuber crops native to Australia,” he said.

“We need to know what unique traits Australian yams have and whether Nigerian germplasm, or germplasm from other parts of the Pacific, could be successful here and how we could help each other.”

Mr Olumide’s research on the nutritional potential of several Australian yam species was published in Food Bioscience.

Images are available via Dropbox.

Media: Samson Olumide Fawale, o.fawale@uq.edu.au, +61 451 750 894; Tracy Gray, tracyagray01@gmail.com; QAAFI Comms, Natalie MacGregor, n.macgregor@uq.edu.au, +61 409 135 651.

The Queensland Alliance for Agriculture and Food Innovation is a research institute at The University of Queensland, established with and supported by the Department of Primary Industries.

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