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United States Department of Agriculture

Agricultural Research Service

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Research Project: Development of High Yielding Soybeans with High-Oleic and Low-Linolenic, Low-Saturates Or High Stearic Fatty Acids in Seed Oil

Location: Soybean and Nitrogen Fixation Research

Project Number: 6645-21220-068-21
Project Type: Reimbursable

Start Date: Apr 01, 2012
End Date: Mar 31, 2014

Objective:
1. Increase oil content above 22% while maintaining protein content at 41.5% and maintaining or increasing yield. 2. Increase stearic acid content, combining it with high oleic acid and high yield. 3. Decrease palmitic acid (less total saturated fatty acids), combining it with high oleic acid, low linolenic acid and high yield. 4. Continue to explore new and beneficial genetic resources (plant introductions, genes, molecular markers, and gene combinations) of oil traits that do not decrease yield and are environmentally stable.

Approach:
Soybean breeders in GA, NC, OH, TN, MO, AR, MI, SD and MN will work together to development productive soybean germplasms and varieties with improved oil quality, focusing on high oleic (HO) plus low palmitic acid, HO plus low palmiticis acid and low linolenic acid, HO plus high stearic acid, and HO plus increased bio-available tocopherol content. The genes controlling the traits will be merged using the latest molecular marker technology, and germplasm will be produced and tested in multiple field environments to confirm the stability of these improved fatty acid profiles. Some of the researchers will work on identifying new genes that affect oil composition to offer new alternatives for breeders and to avoid the potential problems associated with fixation of specific regions of the soybean genome.

Last Modified: 7/28/2014
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