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Research Project: Genetic Improvement of Small Grains for Biotic and Abiotic Stress Tolerance and Characterization of Pathogen Populations

Location: Plant Science Research

Title: Registration of scab-resistant KY06C-11-3-10 soft red winter wheat germplasm

Author
item CLARK, ANTHONY - University Of Kentucky
item COSTA, JOSE - University Of Maryland
item GRIFFEY, CARL - Virginia Polytechnic Institution & State University
item Brown-Guedira, Gina
item DONG, YANHONG - University Of Minnesota
item Souza, Edward
item MURPHY, J - North Carolina State University
item VAN SANFORD, DAVID - University Of Kentucky

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 4/1/2014
Publication Date: 5/2/2014
Citation: Clark, A., Costa, J., Griffey, C., Brown Guedira, G.L., Dong, Y., Souza, E.J., Murphy, J.P., Van Sanford, D. 2014. Registration of scab-resistant KY06C-11-3-10 soft red winter wheat germplasm. Journal of Plant Registrations. 8:211-216.

Interpretive Summary: Fusarium head blight (FHB) is a serious disease of wheat (Triticum aestivum L.) worldwide that has elicited a widespread resistance-breeding effort. One approach to breeding relies on deployment of exotic quantitative trait loci (QTL) from wheat outside North America. Germplasm line KY06C-11-3-10 (Reg. No. GP-965, PI 669817) is a soft red winter wheat that is a product of an accelerated backcrossing program performed jointly by the Kentucky Agricultural Experiment Station, Maryland Agricultural Experiment Station, Virginia Polytechnic Institute and State University, North Carolina State University, and the USDA–ARS. KY06C-11-3-10 carries exotic FHB resistance alleles from Chinese spring wheat ‘Ning7840’ at Fhb1, and at QTL on chromosomes 5A and 2DL. These QTL, backcrossed into ‘McCormick’—which itself has nonexotic, native moderate resistance—reduced FHB spike symptoms, percentage Fusarium-damaged kernels, and concentration of the mycotoxin deoxynivalenol (DON). KY06C-11-3-10 has additionally been selected for yield, test weight, heading date, height, milling and baking quality, and resistance to lodging. The combination of exotic resistance QTL, moderately resistant genetic background, widespread adaptation, and competitive agronomic and quality characteristics makes KY06C-11-3-10 a useful germplasm for wheat breeders.

Technical Abstract: Fusarium head blight (FHB) is a serious disease of wheat (Triticum aestivum L.) worldwide that has elicited a widespread resistance-breeding effort. One approach to breeding relies on deployment of exotic quantitative trait loci (QTL) from wheat outside North America. Germplasm line KY06C-11-3-10 (Reg. No. GP-965, PI 669817) is a soft red winter wheat that is a product of an accelerated backcrossing program performed jointly by the Kentucky Agricultural Experiment Station, Maryland Agricultural Experiment Station, Virginia Polytechnic Institute and State University, North Carolina State University, and the USDA–ARS. KY06C-11-3-10 carries exotic FHB resistance alleles from Chinese spring wheat ‘Ning7840’ at Fhb1, and at QTL on chromosomes 5A and 2DL. These QTL, backcrossed into ‘McCormick’—which itself has nonexotic, native moderate resistance—reduced FHB spike symptoms, percentage Fusarium-damaged kernels, and concentration of the mycotoxin deoxynivalenol (DON). KY06C-11-3-10 has additionally been selected for yield, test weight, heading date, height, milling and baking quality, and resistance to lodging. The combination of exotic resistance QTL, moderately resistant genetic background, widespread adaptation, and competitive agronomic and quality characteristics makes KY06C-11-3-10 a useful germplasm for wheat breeders.