Nematode breakthrough

EFFECTIVE control of root lesion nematodes - which cost the Australian wheat industry an estimated $45 million a year - may result from recently identified sources of genetic resistance, according to Queensland Department of Primary Industries pathologist Rebecca Swart.

Ms Swart says glasshouse testing has identified potential sources of RLN resistance in synthetic hexaploid wheats derived from wild wheat relatives. The resistances could provide a genetic answer to the two different types of RLN that affect wheat crops in southern and northern Australia. As a bonus, the same source of RLN resistance could also provide a solution to yellow spot disease. Ms Swart said the objective of the three-year GRDC-supported project was to use gene markers to locate and tag resistance genes. Once clearly identified, the genes could be used for rapid testing of potential wheat varieties to ensure they have the necessary resistance.

Program 3 Contact: Ms Rebecca Swart 07 4639 8888

Region North