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Wheat quality improvement at CIMMYT and the use of genomic selection on it

Author: Guzman, C.
Author: Peña, R.
Author: Singh, R.G.
Author: Autrique, E.
Author: Dreisigacker, S.
Author: Crossa, J.
Author: Rutkoski, J.
Author: Poland, J.
Author: Battenfield, S.
Year: 2016
URI: http://hdl.handle.net/10883/18331
Abstract: The International Center for Maize and Wheat Improvement (CIMMYT) leads the Global Wheat Program, whose main objective is to increase the productivity of wheat cropping systems to reduce poverty in developing countries. The priorities of the program are high grain yield, disease resistance, tolerance to abiotic stresses (drought and heat), and desirable quality. The Wheat Chemistry and Quality Laboratory has been continuously evolving to be able to analyze the largest number of samples possible, in the shortest time, at lowest cost, in order to deliver data on diverse quality traits on time to the breeders for making selections for advancement in the breeding pipeline. The participation of wheat quality analysis/selection is carried out in two stages of the breeding process: evaluation of the parental lines for new crosses and advanced lines in preliminary and elite yield trials. Thousands of lines are analyzed which requires a big investment in resources. Genomic selection has been proposed to assist in selecting for quality and other traits in breeding programs. Genomic selection can predict quantitative traits and is applicable to multiple quantitative traits in a breeding pipeline by attaining historical phenotypes and adding high-density genotypic information. Due to advances in sequencing technology, genome-wide single nucleotide polymorphism markers are available through genotyping-by-sequencing at a cost conducive to application for genomic selection. At CIMMYT, genomic selection has been applied to predict all of the processing and end-use quality traits regularly tested in the spring wheat breeding program. These traits have variable levels of prediction accuracy, however, they demonstrated that most expensive traits, dough rheology and baking final product, can be predicted with a high degree of confidence. Currently it is being explored how to combine both phenotypic and genomic selection to make more efficient the genetic improvement for quality traits at CIMMYT spring wheat breeding program.
Format: PDF
Language: English
Publisher: Elsevier
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Place of Publication: Amsterdam, Netherlands
Pages: 3-8
Volume: 11
DOI: 10.1016/j.atg.2016.10.004
Keywords: Wheat Quality
Keywords: Genomic Selection
Keywords: Wheat Breeding
Agrovoc: WHEAT
Agrovoc: QUALITY
Agrovoc: ARTIFICIAL SELECTION
Agrovoc: PLANT BREEDING
Journal: Applied and Translational Genomics


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  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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