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Agricultural News


More Nutritious Crops a Possibility with University's Discovery of Vitamin E Producing Gene in Maize

Thu, 02 Nov 2017 11:56:10 CDT

More Nutritious Crops a Possibility with University's Discovery of Vitamin E Producing Gene in Maize New research has identified genes that control vitamin E content in maize grain, a finding that could lead to improving the nutritional profile of this staple crop.



Cornell University scientists and colleagues from other institutions combined different types of genetic association analyses to identify 14 genes across the genome that were involved in the synthesis of vitamin E. Six genes were newly discovered to encode proteins that contribute to a class of antioxidant compounds called tocochromanols, collectively known as vitamin E. Along with antioxidant properties, tocochromanols have been associated with good heart health in humans and proper functioning in plants.



“We have established a near-complete foundation for the genetic improvement of vitamin E in grain of maize and other major cereals,” said Michael Gore, associate professor of plant breeding and genetics and a co-corresponding author of the study published in the journal, The Plant Cell.



“There has been talk, among breeders working to increase provitamin A in maize, that we could increase vitamin E at the same time,” said Christine Diepenbrock, a graduate student in Gore’s lab, and the paper’s first author. “They are related compounds biochemically, and tocochromanols are essential for seed viability in that they prevent seed oils from going rancid throughout seed storage, germination and early seedling development.”



The other co-corresponding authors are Dean DellaPenna, professor of biochemistry and molecular biology at Michigan State University, and Edward Buckler, research geneticist at the U.S. Department of Agriculture-Agricultural Research Service and adjunct professor of plant breeding and genetics at the Institute for Genomic Diversity in Cornell's Institute of Biotechnology.



The study was funded by the National Science Foundation, USDA-ARS, Cornell University startup funds, and USDA National Needs Fellowship.



Source - Cornell University





   

 

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