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ARS Home » Pacific West Area » Pullman, Washington » WHGQ » Research » Publications at this Location » Publication #373081

Research Project: Wheat Quality, Functionality and Marketablility in the Western U.S.

Location: Wheat Health, Genetics, and Quality Research

Title: Registration of ‘USDA Lori’ soft white spring waxy wheat

Author
item Morris, Craig
item Kiszonas, Alecia
item Peden, Gail
item PUMPHREY, MICHAEL - Washington State University

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/20/2020
Publication Date: 12/12/2021
Citation: Morris, C.F., Kiszonas, A., Peden, G.L., Pumphrey, M.O. 2021. Registration of ‘USDA Lori’ soft white spring waxy wheat. Journal of Plant Registrations. 15:172-176. https://doi.org/10.1002/plr2.20115.
DOI: https://doi.org/10.1002/plr2.20115

Interpretive Summary: Starch is the leading component of wheat grain and flour and is comprised of two primary glucose polymers, amylose and amylopectin. Our aim was to convert a previously leading soft white spring wheat (T. aestivum L.) cultivar to a zero endosperm starch amylose content (‘waxy’) cultivar. The result was ‘USDA Lori’, a waxy wheat cultivar developed by the USDA Agricultural Research Service’s Western Wheat Quality Lab in collaboration with Washington State University. Waxy wheat provides food and feed manufacturers a unique material with which to create innovative products.

Technical Abstract: Starch is the leading component of wheat (Triticum spp.) grain and flour and is comprised of two primary glucose polymers, amylose and amylopectin. Our aim was to convert a previously leading soft white spring wheat (T. aestivum L.) cultivar to a zero endosperm starch amylose content (‘waxy’) cultivar. The result was ‘USDA Lori’ (PI 692132), a waxy wheat cultivar developed by the USDA Agricultural Research Service’s Western Wheat Quality Lab in collaboration with Washington State Univ. USDA Lori is a back-cross-7 (BC7) derivative of ‘Alpowa’ (PI 566595). USDA Lori lacks functional copies of the three Waxy Granule Bound Starch Synthase I (GBSSI) genes. The GBSSI null alleles were derived from the waxy cultivar ‘Waxy-Pen’ (PI 637779). As a waxy cultivar, USDA Lori has unique processing and food and feed applications. Further, this waxy cultivar complements a series of Waxy near-isogenic lines, which were produced as back-cross derivatives of Alpowa.