Brent S. Hulke, Qing-Ming Gao, Michael E. Foley
Abstract: One of the primary goals for the oilseed sunflower (Helianthus annuus L.) industry is to provide novel oil products for human consumption. One oil profile of particular interest is high oleic and 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 and trans-fats. In addition, traits that contribute to ease of production, such as tolerance to 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. GS-58, PI 678787), HOLS2 (Reg. No. GS-59, PI 678788), HOLS3 (Reg. No. GS-60, PI 678789), and HOLS4 (Reg. No. GS-61, PI 678790) are maintainer inbred genetic stocks that were developed using backcross and pedigree methods, with testing of 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, to fill the urgent need for useful variation in fatty acid composition in oilseed sunflower.
Published in Journal of Plant Registration to view article click here.