Environmental effects on fatty acid levels in soybean seed oil
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
FA composition determines the quality of vegetable oil. Soybean breeders have generated and used mutations in FA genes to develop altered FA profiles in the seed. However, the expression of the alleles and the relative activity of the gene products are often dependent on the environment, and these facts have hampered the breeding efforts. To investigate the environmental effect on FA composition of soybean seed oil in specific mutant material developed at the University of Guelph, a recombinant inbred line (RIL) population was developed from a cross between a low palmitate (16∶0) line and a high-stearate (18∶0) parent. The RIL population was field-tested across three environments over 2 yr. A combined ANOVA for FA composition was conducted to determine the year and location effects on the expression of FA alleles in this material. The results indicated that linolenic (18∶3) level was most vulnerable to the environmental changes. Year effects accounted for a greater amount of variance than location effects for 16∶0, 18∶0, and 18∶1, whereas location effects were more important than year effects for the relative amounts of 18∶2 and 18∶3. Genotype × environment (year, location) interaction effects were significant for the relative amounts of all five FA according to the combined ANOVA. Our results indicated that the extreme minimum daily temperatures during September seed fill period, rather than the means or the maximum temperature, may be responsible for the ratio of saturated vs. unsaturated FA in soybean oil.
- Howell, R.W., and F.I. Collins, Factors Affecting Linolenic and Linoleic Acid Content of Soybean Oil, Agron. J. 49:593–597 (1957). CrossRef
- Chu, W.S. and V.L. Sheldon, Soybean Oil Quality as Influenced by Planting Site and Variety, J. Am. Oil Chem. Soc. 56:71–73 (1979).
- Dombos, D.L., Jr., and R.E. Mullen, Soybean Seed Protein and Oil Contents and Fatty Acid Composition Adjustments by Drought and Temperature, —Ibid. 69:228–231 (1992).
- Schnebly, S.R., and W.R. Fehr, Effect of Years and Planting Dates on Fatty Acid Composition of Soybean Genotypes, Crop Sci. 33:716–719 (1993). CrossRef
- Kane, M.V., C.C. Steele, L.J. Grabau, C.T. MacKown, and D.F. Hildebrand, Early-Maturing Soybean Cropping System: III. Protein and Oil Contents and Oil Composition, Agron. J. 89:464–469 (1997). CrossRef
- Wolf, R.B., J.F. Cavins, R. Kleiman, and L.T. Black, Effect of Temperature on Soybean Seed Constituents: Oil, Protein, Moisture, Fatty Acids, Amino Acids and Sugars, J. Am. Oil Chem. Soc. 59:230–232 (1982).
- Primomo, V.S., D.E. Falk, G.R. Ablett, J.W. Tanner, and I. Rajcan, Genotype-Environment Interactions, Stability and Agronomic Performance of Soybeans with Altered Fatty Acid Profiles, Crop Sci. 42:31–36 (2002). CrossRef
- Carver, B.F., J.W. Burton, T.E. Carter, Jr., and R.F. Wilson, Response to Environmental Variation of Soybean Lines Selected for Altered Unsaturated Fatty Acid Composition, Crop Sci. 26:1176–1181 (1986). CrossRef
- Rennie, B.D., and J.W. Tanner, Fatty Acid Composition of Oil from Soybean Seeds Grown at Extreme Temperatures, J. Am. Oil Chem. Soc. 66:1622–1624 (1989).
- Rajcan, I., G. Hou, and A.D. Weir, Advances in Breeding of Seed Quality Traits in Soybean, J. Crop Improv. 14:145–174 (2005). CrossRef
- Khosla, P., and K. Sundram, Effects of Dietary Fatty Acid Composition on Plasma Cholesterol, Prog. Lipid Res. 35:93–132 (1996). CrossRef
- Hu, F.B., M.J. Stampfer, J.E. Manson, E. Rimm, G.A. Colditz, B.A. Rosner, C.H. Hennekens, and W.C. Willett, Dietary Fat Intake and the Risk of Coronary Heart Disease in Women, N. Engl. J. Med. 337:1491–1499 (1997). CrossRef
- List, G.R., K.R. Steidley, and W.E. Neff, Commercial Spreads Formulation, Structure and Properties, inform 11:980–986 (2000).
- List, G.R., T.L. Mounts, F. Orthoefer and W.E. Neff, Margarine and Shortening Oils by Interesterification of Liquid and Trisaturated Triglycerides, J. Am. Oil Chem. Soc. 72:379–382 (1995). CrossRef
- Wilson, R.F., Seed Composition, in Soybeans: Improvement, Production and Uses, 3rd edn., edited by H.R. Boerma and J.E. Specht, ASA/CSSA/SSSA Publishers, Madison, 2004, pp. 621–677.
- Lin, C.S., and G. Poushinsky, A Modified Augmented Design (type 2) for Rectangular Plots, Can. J. Plant Sci. 65:743–749 (1985). CrossRef
- Bowley, S.R., A Hitchhiker's Guide to Statistics in Plant Biology, Any Old Subject Books, Guelph, ON, Canada, 1999, pp. 148–149.
- Fehr, W.R., C.E. Caviness, D.T. Burmond, and J.S. Pennington, Stage of Development Description, for Soybeans, Crop Sci. 11:929–931 (1977). CrossRef
- Cheesbrough, T., Changes in the Enzymes for Fatty Acid Synthesis and Desaturation During Acclimation of Developing Soybean Seeds to Altered Growth Temperature, Plant Physiol. 90:760–764 (1989). CrossRef
- Environment Canada, National Climate Archive, http://www.climate.weatheroffice.ec.gc.ca/ (accessed April 2006).
- Environmental effects on fatty acid levels in soybean seed oil
Journal of the American Oil Chemists' Society
Volume 83, Issue 9 , pp 759-763
- Cover Date
- Print ISSN
- Online ISSN
- Additional Links
- Environmental effect
- fatty acid composition
- oil quality
- soybean breeding
- Industry Sectors