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Useful sources of resistance to white rust disease, caused by Albugo candida, identified in Brassica juncea germplasm from Australia, China and India

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Australia
March 26, 2008

Researchers from the School of Plant Biology at University of Western Australia and Department of Agriculture and Food, Western Australia have identified useful sources of resistance to white rust disease, caused by the fungus Albugo candida, in Brassica juncea germplasm from Australia, China and India.

Members of a research team funded through an ACIAR and GRDC project, Associate Professor Martin Barbetti and Dr Caixia Li, said yield losses of up to 20 per cent can occur in Australia in B. juncea and B. rapa due to white rust.

Genotypes from China showed the best resistance, followed by those from Australia and India.

The research identified genotypes with very high levels of resistance to strains of A. candida present in WA and a much more rapid method of screening seedlings for resistance under controlled environments, compared with more expensive, more time consuming field screening.

This is the first time very high levels of resistance, or a reliable method of rapid characterisation of genotype responses to A. candida, has been made available for Australian mustard breeders.

 

 

 

 

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