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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Cereal Crops Research » Research » Publications at this Location » Publication #369652
Research Project: Improvement of Biotic Stress Resistance in Durum and Hard Red Spring Wheat Using Genetics and Genomics

Location: Cereal Crops Research

Title: Genetic mapping of phosphorus use in hard red spring wheat cultivated in the Northern Great Plains over the last century

Author
item Fiedler, Jason
item ARDAYFIO, NAA KORKIO - Orise Fellow
item PALER, JESSICA - North Dakota State University
item GOOS, JAY - North Dakota State University

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 10/25/2019
Publication Date: 1/13/2020
Citation: Fiedler, J.D., Ardayfio, N., Paler, J., Goos, J. 2020. Genetic mapping of phosphorus use in hard red spring wheat cultivated in the Northern Great Plains over the last century [abstract]. Plant and Animal Genome Conference XXVIII. PE0960.

Interpretive Summary: .

Technical Abstract: Hard red spring wheat is a high-protein bread wheat and a major crop in North Dakota. We identified approximately 150,000 genome-wide single nucleotide polymorphism (SNP) markers in cultivars grown throughout the region. Sub-structure analysis identified several clusters of the lines, with release year and breeding program origin mostly influencing the structure designations. Diversity analysis showed that that allelic richness decreased over time as new cultivars became increasingly more similar to each other than in previous time-frames. The population was subjected to growth under varied phosphorus-limiting conditions, and agronomic traits were collected to identify cultivars with traits associated with high phosphorus-use efficiency (PUE). Genome-wide association analysis identified several SNPs that were associated with the traits. The globe is running out of rock phosphate ore needed to make P fertilizers and the efficient use of this element will become important to maintain yield potential in the future. The markers identified here and with subsequent fine-mapping have potential for tracking these traits in wheat breeding programs to maintain high PUE and mitigate future risk.