{"title":"Four-allele combinations for high oleic, low linolenic soybeans","authors":"Karen Hudson, Militza Carrero-Colón","doi":"10.1002/aocs.12925","DOIUrl":null,"url":null,"abstract":"<p>Soybean oil accounts for approximately 29% of global oil consumption. The polyunsaturated linoleic and linolenic acids comprise more than 60% of commodity soybean oil, while oleic acid makes up 20%. To make a healthier soybean oil with improved stability for food uses, genetic approaches in soybean composition breeding target reducing levels of linoleic and linolenic acids while simultaneously increasing the oleic acid fraction. Quadruple mutants were constructed to evaluate the combinations of <i>fatty acid desaturase2</i> (<i>fad2</i>) and <i>fatty acid desaturase3</i> (<i>fad3</i>) mutant alleles to achieve a high oleic, low linolenic soybean oil profile. Over three growing seasons we observed that all four combinations resulted in oleic acid levels from 75% to 82%, and linolenic acid levels from 1.9% to 2.7%. No significant differences in seed total protein or oil levels were observed in the quadruple mutants, suggesting that these combinations will be useful for breeding soybean with improved oil profiles.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 4","pages":"765-770"},"PeriodicalIF":2.4000,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Oil Chemists Society","FirstCategoryId":"97","ListUrlMain":"https://aocs.onlinelibrary.wiley.com/doi/10.1002/aocs.12925","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Soybean oil accounts for approximately 29% of global oil consumption. The polyunsaturated linoleic and linolenic acids comprise more than 60% of commodity soybean oil, while oleic acid makes up 20%. To make a healthier soybean oil with improved stability for food uses, genetic approaches in soybean composition breeding target reducing levels of linoleic and linolenic acids while simultaneously increasing the oleic acid fraction. Quadruple mutants were constructed to evaluate the combinations of fatty acid desaturase2 (fad2) and fatty acid desaturase3 (fad3) mutant alleles to achieve a high oleic, low linolenic soybean oil profile. Over three growing seasons we observed that all four combinations resulted in oleic acid levels from 75% to 82%, and linolenic acid levels from 1.9% to 2.7%. No significant differences in seed total protein or oil levels were observed in the quadruple mutants, suggesting that these combinations will be useful for breeding soybean with improved oil profiles.
期刊介绍：
The Journal of the American Oil Chemists’ Society (JAOCS) is an international peer-reviewed journal that publishes significant original scientific research and technological advances on fats, oils, oilseed proteins, and related materials through original research articles, invited reviews, short communications, and letters to the editor. We seek to publish reports that will significantly advance scientific understanding through hypothesis driven research, innovations, and important new information pertaining to analysis, properties, processing, products, and applications of these food and industrial resources. Breakthroughs in food science and technology, biotechnology (including genomics, biomechanisms, biocatalysis and bioprocessing), and industrial products and applications are particularly appropriate.
JAOCS also considers reports on the lipid composition of new, unique, and traditional sources of lipids that definitively address a research hypothesis and advances scientific understanding. However, the genus and species of the source must be verified by appropriate means of classification. In addition, the GPS location of the harvested materials and seed or vegetative samples should be deposited in an accredited germplasm repository. Compositional data suitable for Original Research Articles must embody replicated estimate of tissue constituents, such as oil, protein, carbohydrate, fatty acid, phospholipid, tocopherol, sterol, and carotenoid compositions. Other components unique to the specific plant or animal source may be reported. Furthermore, lipid composition papers should incorporate elements of yeartoyear, environmental, and/ or cultivar variations through use of appropriate statistical analyses.
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