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United States Department of Agriculture

Agricultural Research Service

Title: Registration of a sunflower genetic stock (RS3) with reduced palmitic and stearic acids

Authors
item Vick, Brady
item Jan, Chao-Chien
item Miller, Jerry

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: December 21, 2006
Publication Date: May 1, 2007
Citation: Vick, B.A., Jan, C.C., Miller, J.F. 2007. Registration of a sunflower genetic stock RS3 with reduced levels of palmitic and stearic acids. Journal of Plant Registrations. 1:80.

Interpretive Summary: A genetic stock (RS3) is released which provides an additional source of lower saturated fatty acids combined with a plant type typical of cultivated sunflower. RS3 will facilitate meeting consumers' demand for reduced saturated fat content in their diet. RS3 was derived from a cross of a traditional sunflower inbred line, HA 89 with a Havasupi Native American cultivar and a previously released low saturated fatty acid line, RS1. The resulting seed oil contains about 27% less saturated fatty acids than current sunflower hybrids.

Technical Abstract: A sunflower (Helianthus annuus L.) genetic stock, RS3 (PI 642702), having reduced levels of palmitic and stearic acids, was developed and released by the USDA-ARS and the North Dakota Agricultural Experiment Station, Fargo, ND. This genetic stock provides an additional source of lower saturated fatty acids combined with a plant type more typical of cultivated sunflower. RS3 will facilitate meeting consumers' demand for reduced saturated fat content in their diet. RS3 is an F6-derived F7 oilseed line resulting from the cross HA 89//cms HA 89/Ames 3406/3/RS1. HA 89 (PI 599773) is an oilseed maintainer line released by the USDA-ARS and the Texas Agricultural Experiment Station in 1971. Ames 3406 is a Havasupi Native American cultivar collected in the Grand Canyon, USA, and donated to the USDA-ARS North Central Regional Plant Introduction Station, Ames, Iowa, by William Roath in 1985. RS1 (PI 616494) is a genetic stock with reduced palmitic and stearic acids released by the USDA-ARS and the North Dakota Agricultural Experiment Station in 2001 (Vick et al., 2003). The seed oil of RS3 contains about 27% less saturated fatty acids than current sunflower hybrids.

Last Modified: 11/27/2014
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