Research to improve resistance to costly wheat fungal disease November 27, 2015 Research is underway that will pave the way for new, improved wheat varieties that are more resistant to a significant fungal disease that costs Western Australian growers $108 million each year. Stagonospora nodorum blotch (SNB) is widespread across the Wheatbelt, especially the high rainfall zone, which results in shrivelled grain and average yield losses of nine per cent. Department of Agriculture and Food is using new genomic technology from its counterparts in Victoria to identify and track gene combinations that produce resistance to SNB, for future use in breeding new commercial wheat varieties. The research is funded by the Grains Research and Development Corporation’s (GRDC) Effective Genetic Control of SNB project, with wheat gene and DNA marker analysis from the State Agricultural Biotechnology Centre at Murdoch University. Department senior research officer and Adjunct Professor at Murdoch University Michael Francki said the project drew on previous GRDC funded research to identify the sources of resistance to SNB. “We have searched for wheat lines from across Australia and overseas to source germplasm that will allow us to develop wheat plants with high levels of SNB resistance,” Dr Francki said. “It is quite a complex process, as it is the accumulated effect of several genes that creates resistance to the fungal disease, but we have now targeted the genes to deploy into breeding wheat suitable for WA growing regions.” The research has benefitted greatly from the recent sequencing of the wheat genome, effectively providing a DNA map of the structure and function of genes that provide resistance to SNB. Dr Francki said it was important to test the new SNB resistant germplasm in field trials to evaluate its suitability for WA production environments. “We need to find the best combination of genes from different sources that give a suitable level of resistance in varieties for WA,” he said. “This will give crop breeding companies more confidence about the environmental influence on resistance levels when they choose germplasm and use DNA markers to select these genes in breeding.” If the field trials are successful, suitable germplasm is expected to be made available to Australian wheat breeding companies in 2017, after which it will take at least five years to develop new commercial varieties. Print This Post Media contact: Jo Manning Tel: (08) 9360 2474 | Mobile: 0408 201 309 | Email: email@example.com Categories: General, Research, Animal and plant studies, environment and bioinformatics Tags: crop and pasture science, dafwa, department of agriculture and food, fungal disease wheat, grain research and development corp, grains research murdoch, grdc, michael franki, murdoch state agricultural biotechnology centre, wheat research Leave a comment Name (required) Mail (will not be published) (required) Website You can use these tags : <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong> We read every comment and will make every effort to approve each new comment within one working day. To ensure speedy posting, please keep your comments relevant to the topic of discussion, free of inappropriate language and in-line with the editorial integrity of this newsroom. If not, your comments may not be published. Thanks for commenting!