Location: Grain, Forage & Bioenergy Research
Title: Assessment of Genetic and Molecular Approaches for the Prediction of Wheat Quality Author
Submitted to: American Association of Cereal Chemists Meetings
Publication Type: Abstract Only
Publication Acceptance Date: April 2, 2010
Publication Date: October 24, 2010
Citation: Graybosch, R.A. 2010. Assessment of Genetic and Molecular Approaches for the Prediction of Wheat Quality. American Association of Cereal Chemists Meetings. Abstract presented at American Association of Cereal Chemists (AACC)International Annual Meeting in Savannah, GA, Oct. 24-27, 2010. Also published online at http://www.aaccnet.org/cerealfoodsworld/openarticles/2010/CFW-55-4-suppl.pdf Technical Abstract: Assessment of genetic and molecular approaches for the prediction of wheat quality. R.A. Graybosch, USDA-ARS, Lincoln, NE, U.S.A. Over the past four decades, the field of plant breeding and genetics has been revolutionized by technological advances in the areas of DNA manipulation and evaluation. For some crops, these approaches have brought new products to market via genetic transformation, and have vastly improved the efficiency of selection in breeding programs. Marker-assisted selection also has improved the efficiency of selection of disease resistant lines, thereby indirectly impacting crop quality. At the same time, technological advances in the fields of immunology and spectroscopy have improved the ability of breeders to rapidly phenotype selections. This presentation will examine some of the advances in genetic manipulation, DNA marker assisted selection, and rapid phenotyping that have impacted breeding efforts to improve or alter wheat quality and disease resistance. Attention will be focused on efforts to alter grain polyphenol oxidase activities, starch composition, gluten strength, tolerance to pre-harvest sprouting and selection of lines carrying resistance to wheat streak mosaic virus. The relative merits for selection of each trait will be discussed.