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ARS Home Northeast Area Geneva, New York Grape Genetics Research Unit (GGRU) Research Publications at this Location





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Title:   Author  item
                                            ZHENG, PEIZHONG - PIONEER HI-BRED INTERNATIitem
                                            ALLEN, WILLIAM - PIONEER HI-BRED INTLitem
                                            ROESLER, KEITH - PIONEER HI-BRED INTLitem
                                            WILLIAMS, MARK - PIONEER HI-BRED INTLitem
                                            ZHANG, SHIRONG - PIONEER HI-BRED INTLitem
                                            LI, JIMING - PIONEER HI-BRED INTLitem
                                            GLASSMAN, KIMBERLY - PIONEER HI-BRED INTLitem
                                            RANCH, JERRY - PIONEER HI-BRED INTLitem
                                            NUBEL, DOUGLAS - PIONEER HI-BRED INTLitem
                                            SOLAWETZ, WILLIAM - PIONEER HI-BRED INTLitem
                                            BHATTRAMAKKI, DINAKAR - PIONEER HI-BRED INTLitem
                                            LLACA, VICTOR - PIONEER HI-BRED INTLitem
                                            DESCHAMPS, STEPHANE - PIONEER HI-BRED INTLitem
                                            Zhong, Gan-Yuanitem
                                            TARCZYNSKI, MITCHELL - PIONEER HI-BRED INTLitem
                                            SHEN, BO - PIONEER HI-BRED INTL
  Submitted to: Nature Genetics
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 12/4/2007
                                    Publication  Date: 2/17/2008
                                    Citation: Zheng, P., Allen, W., Roesler, K., Williams, M., Zhang, S., Li, J., Glassman, K., Ranch, J., Nubel, D., Solawetz, W., Bhattramakki, D., Llaca, V., Deschamps, S., Zhong, G., Tarczynski, M., Shen, B. 2008. A phenylalanine in DGAT is a key determinant of oil content and composition in maize. Nature Genetics. 40:367-372.Interpretive Summary: Plant oil is an important renewable energy source for human consumption and industrial use, especially for biodiesel production. Maize kernel oil content is controlled by multiple quantitative loci (QTLs).  Here we report the fine-mapping and positional cloning of an acyl-CoA: diacylglycerol acyltransferase (DAGT1-2) gene responsible for a major oil/oleic QTL located on maize chromosome six.  In addition, we demonstrate that a phenylalanine (F469) in DAGT1-2 plays a crucial role in controlling oil and oleic contents.
                                Technical Abstract: Plant oil is an important renewable energy source for human consumption and industrial use, especially for biodiesel production. Maize kernel oil content is controlled by multiple quantitative loci (QTLs). The molecular basis of oil QTL, however, remains unknown.  Here we report that the qHO6 gene, a major QTL affecting kernel oil and oleic content, encodes an acyl-CoA: diacylglycerol acyltransferase (DAGT1-2) and demonstrate that a phenylalanine (F469) in expression of high oil DAGT1-2 increased kernel oil content by as much as 41%.


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