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ARS Home » Plains Area » Manhattan, Kansas » Center for Grain and Animal Health Research » Hard Winter Wheat Genetics Research » Research » Publications at this Location » Publication #389449
Research Project: Genetic Improvement of Biotic and Abiotic Stress Tolerance and Nutritional Quality in Hard Winter Wheat

Location: Hard Winter Wheat Genetics Research

Title: Genetic mapping of end-use quality quantitative trait loci in hard red winter wheat

Author
item YU, SHUHAO - Texas A&M University
item ASSANGA, SILVANO - Texas A&M University
item VADER, SHARIS - Texas A&M University
item AWIKA, JOSEPH - Texas A&M University
item IBRAHIM, AMIR - Texas A&M University
item RUDD, JACKIE - Texas A&M University
item XUE, QINGWU - Texas A&M University
item Guttieri, Mary
item ZHANG, GUORONG - Kansas State University
item BAKER, JASON - Texas A&M University
item JESSUP, KIRK - Texas A&M University
item LIU, SHUYU - Texas A&M University

Submitted to: Agronomy
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/4/2021
Publication Date: 12/11/2021
Citation: Yu, S., Assanga, S., Vader, S., Awika, J., Ibrahim, A., Rudd, J., Xue, Q., Guttieri, M.J., Zhang, G., Baker, J., Jessup, K., Liu, S. 2021. Genetic mapping of end-use quality quantitative trait loci in hard red winter wheat. Agronomy. 11(12). Article 2519. https://doi.org/10.3390/agronomy11122519.
DOI: https://doi.org/10.3390/agronomy11122519

Interpretive Summary: Wheat quality characteristics are time-consuming to measure and require large sample sizes. Therefore breeders are unable to make selections for quality traits early in the breeding process. DNA-based markers associated with quality traits can be useful tools for making selections at early stages of breeding. This study characterized mixing traits and nutritional quality traits in a population of lines adapted to the central Great Plains of the United States. A large number of genomic regions were associated with quality traits, primarily those regions known to be associated with specific gluten protein genes. Genomic regions with associations to concentrations of cadmium, cobalt, lithium molybdenum, rubidium, and strontium concentrations in grain were identified in this study. The results of the study provide useful information for breeders working to incorporate quality traits in their marker-based selection program.

Technical Abstract: To meet the demands of different wheat-based food products, traits related to end-use quality become indispensable components in wheat improvement. Thus markers associated with these traits are valuable for timely evaluation for protein content, kernel physical characteristics, and rheological properties. Hereunder, we report the results of quantitative trait loci (QTLs) linked to end-use quality traits. We used a dense genetic map with 5,199 SNPs from 90K array based on a recombinant inbred line (RIL) population derived from ‘CO960293-2’/’TAM 111’. The population was evaluated for flour protein content, kernel characteristics, dough rheological properties, and grain mineral concentrations. An inclusive composite interval mapping model for individual and across-environment QTL analyses revealed 21 consistent QTLs identified in two or more environments. Chromosomes 1A, 1B, and 1D had clustered QTLs associated with rheological parameters. Glu-D1 loci from CO960293-2 and either low-molecular-weight glutenin subunits or gliadin loci on 1A, 1B, and 1D influenced dough mixing properties substantially with total phenotypic variation explained (PVE) up to 34.2%. Eleven QTLs associated with grain Cd, Co, Li, Mo, Rb, and Sr concentrations were identified on 2B, 3B, 4B, 5A, 5B, and 7B, explaining up to 12.2% of PVE. The results provide important genetic resources towards understanding the genetic bases of end-use quality traits. Information about the novel and consistent QTLs provided solid foundations for further characterization and marker design used in marker-assisted selection for end-use quality improvements.