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United States Department of Agriculture

Agricultural Research Service

Research Project: MANAGEMENT OF NATIONAL SMALL GRAINS COLLECTION RESOURCES

Location: Small Grains and Potato Germplasm Research

Title: New and Diverse Sources of Multiple Disease Resistnace in Wheat.

Authors
item Gurung, Suraj -
item Bonman, John
item Ali, Shaukat -
item Patel, Jaimin -
item Myrfield, Mary -
item Mergoum, Mohamed -
item Singh, Pawan -
item Adhikari, Tika -

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 1, 2009
Publication Date: August 1, 2009
Repository URL: http://riley.nal.usda.gov/nal_web/digi/submission.html
Citation: Gurung, S., Bonman, J.M., Ali, S., Patel, J., Myrfield, M., Mergoum, M., Singh, P.K., Adhikari, T.B. 2009. New and Diverse Sources of Multiple Disease Resistnace in Wheat. Crop Sci. 49:1655-1666

Interpretive Summary: Tan spot and Stagonospora nodorum blotch are important diseases of wheat in the upper Midwest. In this work, we screened 825 wheat accessions fro the USDA-ARS National Small Grains Collection (NSGC) for resistance to the two diseases and found 88 accessions that were resistant to both diseases. We also identified that 28 of these 88 were resistant to other key wheat diseases based on previously generated NSGC data. The 88 resistant accessions were diverse based on geographic origin and on molecular marker constitution and thus are likely to have new resistance genes. These accessions will be useful to plant breeders in developing improved wheat varieties with resistance to multiple diseases.

Technical Abstract: Tan spot and Stagonospora nodorum blotch are important diseases of wheat in the upper Midwest. In this work, we screened 825 wheat accessions fro the USDA-ARS National Small Grains Collection (NSGC) for resistance to the two diseases and found 88 accessions that were resistant to both diseases. We also identified that 28 of these 88 were resistant to other key wheat diseases based on previously generated NSGC data. The 88 resistant accessions were diverse based on geographic origin and on molecular marker constitution and thus are likely to have new resistance genes. These accessions will be useful to plant breeders in developing improved wheat varieties with resistance to multiple diseases.

Last Modified: 7/28/2014