Location: Sunflower and Plant Biology ResearchTitle: Registration of the sunflower oilseed maintainer genetic stocks HOLS1, HOLS2, HOLS3, and HOLS4, possessing genes for high oleic and low saturated fatty acids, and tolerance to imidazolinone herbicides
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 1/3/2017
Publication Date: 4/27/2017
Citation: Hulke, B.S., Gao, Q.M., Foley, M.E. 2017. Registration of the sunflower oilseed maintainer genetic stocks HOLS1, HOLS2, HOLS3, and HOLS4, possessing genes for high oleic and low saturated fatty acids, and tolerance to imidazolinone herbicides. Journal of Plant Registrations. 11:200-203.
Interpretive Summary: Four inbred lines were released which combine low saturated fat and high oleic acid in the seed oil with imidazolinone herbicide tolerance in a good genetic background from a yield and agronomic perspective. This work was conducted to fulfill the mission of our research unit to provide greater genetic diversity in valuable, modified seed oil profiles. The low saturated fat, high oleic profile is especially important right now with the upcoming ban on trans-fats in food by the Food and Drug Administration, as well as continued guidance to reduce saturated fat consumption in foods. These lines will be useful for breeders around the world to use in improving hybrids distributed in the USA and elsewhere. The lines are publicly released, and no plant variety protection or plant patent applications will be submitted.
Technical Abstract: One of the primary goals for the oilseed sunflower industry is to provide novel oil products for human consumption. One oil profile of particular interest is high oleic/ low saturated fat, because it combines high oxidative stability of the oil with a reduction in the fatty acids that are detrimental to human health, namely saturated fats and trans fats. In addition, traits that contribute to ease of production, such as tolerance of common herbicides, are also required in modern cultivars. We describe the development of lines that combine imidazolinone herbicide tolerance and a favorable genetic background with a high oleic, low saturated fat profile in the seed oil. HOLS1 (Reg. No. , PI), HOLS2 (Reg. No. , PI), HOLS3 (Reg. No. , PI), and HOLS4 (Reg. No. , PI) are maintainer inbred genetic stocks that were developed using backcross and pedigree methods with testing each generation for fatty acid composition in the seed oil, and confirmation of imidazolinone tolerance in later generations. These lines were released by the USDA-ARS and the North Dakota Agricultural Experiment Station, Fargo, ND, to fill the urgent need for useful variation in fatty acid composition in oilseed sunflower.