High-Oil Corn Hybrids

Lambert, R. J.

doi:10.1201/9781420038569.ch5

Cited by 63 publications

(110 citation statements)

References 51 publications

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“…While we observed a similar range of oil body sizes in control soybean (0.72-2.5 mm), the oil bodies in our transgenic soy were significantly larger (1-14 mm). Relationships between oil body size and oil content have been observed in several species (Lambert, 2000;Mantese et al, 2006) where there is a tendency for higher oil genotypes to contain slightly larger oil bodies than lower oil cultivars.…”

Section: Discussionmentioning

confidence: 97%

Expression of Umbelopsis ramanniana DGAT2A in Seed Increases Oil in Soybean

et al. 2008

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Oilseeds are the main source of lipids used in both food and biofuels. The growing demand for vegetable oil has focused research toward increasing the amount of this valuable component in oilseed crops. Globally, soybean (Glycine max) is one of the most important oilseed crops grown, contributing about 30% of the vegetable oil used for food, feed, and industrial applications. Breeding efforts in soy have shown that multiple loci contribute to the final content of oil and protein stored in seeds. Genetically, the levels of these two storage products appear to be inversely correlated with an increase in oil coming at the expense of protein and vice versa. One way to overcome the linkage between oil and protein is to introduce a transgene that can specifically modulate one pathway without disrupting the other. We describe the first, to our knowledge, transgenic soy crop with increased oil that shows no major impact on protein content or yield. This was achieved by expressing a codon-optimized version of a diacylglycerol acyltransferase 2A from the soil fungus Umbelopsis (formerly Mortierella) ramanniana in soybean seed during development, resulting in an absolute increase in oil of 1.5% (by weight) in the mature seed.

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Section: Discussionmentioning

confidence: 97%

Expression of Umbelopsis ramanniana DGAT2A in Seed Increases Oil in Soybean

et al. 2008

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“…A positive relationship between grain protein and oil content has been reported in studies using Illinois maize strains (Goldman et al, 1993;Lambert, 2001;Wassom et al, 2008), BHO (Zhang et al, 2008), ASK high-oil (Li et al, 2009;Wang et al, 2010), and popcorn germplasms (Liu et al, 2008). Curtis et al (1968) showed that the total germ weight and percentage increased with selection of oil and fatty acid composition in IHO after 65 generations, and the protein content also increased.…”

Section: Comparison Of Qtls Detected For Grain Protein and Oil Contenmentioning

confidence: 99%

“…Maize grain with increased protein and oil contents has high nutritional value for human food, animal feed, and industrial processing (Han et al, 1987;Lambert, 2001). Since Hopkins (1899) first began to investigate selection of maize grain chemical compositions over 100 years ago, several germplasms have been developed, including Illinois high protein (IHP), Illinois low protein (ILP), Illinois high oil (IHO), and Illinois low oil (ILO) (Dudley et al, 1977;Lambert, 1992, 2004) germplasms.…”

Section: Introductionmentioning

confidence: 99%

QTL verification of grain protein content and its correlation with oil content by using connected RIL populations of high-oil maize

Yang

Dong

et al. 2014

Genet. Mol. Res.

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“…The oil concentration of widely used maize hybrids varies between 3.5-5% (LAMBERT, 2001), and affected by the size of embryo, maturity, and position of the kernel on the ear (CURTIS et al, 1968;LAMBERT, 2001). As a result of the studies to enhance oil and protein concentration, lines have been developed containing as high as 220 g kg (Illinois High Protein) protein (DUDLEY; LAMBERT, 1992).…”

Section: Introductionmentioning

confidence: 99%

Discrimination of maize inbreds for kernel quality traits and fatty acid composition by a multivariate technique

Egesel

Kahrıman

Gül³

2011

Acta Sci. Agron.

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ABSTRACT. Quality is considered to be mainly related to protein and oil concentration in maize kernel. Great effort has been made through the elevation of oil and protein concentrations; however, studies to enhance the composition quality of oil have been limited. Maize genotypes with special fatty acid composition may confer different end uses and added value. We investigated eight maize inbreds for kernel quality and fatty acid composition. Kernel samples from a two-year experiment were analyzed for oil, protein, moisture and ash, as well as several fatty acids, including oleic, linoleic, and linolenic acids. Results indicated differences among the genotypes for all traits, except for behenic acid. A680 appeared to be a promising parent to elevate oleic acid, while N194 and RSSSC were the genotypes with the highest oil and protein levels, respectively. A new statistical approach, Canonical Discriminant Analysis with Hypothesis-Error plot technique was utilized to evaluate the data. It showed a good level of agreement with linear tests, and show similar results with those of multi comparison test. With the easily understandable graphical outputs that can interpret the interaction of variables and cases, it offers a good alternative way in analyzing data.Keywords: Zea mays, oil, protein, multivariate analysis. RESUMO. Análise de linhagens de milho quanto às características de qualidade da semente e à composição de ácidos graxos por uma técnica multivariada. Considerase que a qualidade está relacionada principalmente com a concentração de proteínas e de óleos na semente de milho. Grandes esforços foram feitos para elevar as concentrações de óleos e de proteínas; no entanto, os estudos para realçar a qualidade da composição do óleo têm sido limitados. Os genótipos de milho com composição especial de ácidos graxo podem conferir diferentes utilizações finais e maior valor. Foram investigados oito linhagens de milho quanto à qualidade da semente e à composição de ácidos graxos. As amostras de sementes de um ensaio de dois anos foram analisadas quanto aos teores de óleos, proteínas, umidade e cinza, assim como diversos ácidos, incluindo oleico, linoleico e linolênico. Os resultados indicaram diferenças entre os genótipos para todas as linhagens, com exceção do ácido behênico. O A680 pareceu ser promissor para elevar os níveis de ácido oleico, enquanto o N194 e o RSSSC foram as linhagens com os níveis mais elevados de óleos e de proteínas. Uma nova abordagem estatística, a Análise Discriminante Canônica com a técnica de Hipótese-Erro, foi utilizada para avaliar os dados. Esta indicou bom nível de concordância com os testes lineares, e mostra resultados semelhantes aos do teste de comparação múltipla. Os resultados gráficos são fáceis de interpretar e constitui boa alternativa para análise dos dados. Palavras-chave:Zea mays, óleos, proteínas, análise multivariada.

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High-Oil Corn Hybrids

Cited by 63 publications

References 51 publications

Expression of Umbelopsis ramanniana DGAT2A in Seed Increases Oil in Soybean

Expression of Umbelopsis ramanniana DGAT2A in Seed Increases Oil in Soybean

QTL verification of grain protein content and its correlation with oil content by using connected RIL populations of high-oil maize

Discrimination of maize inbreds for kernel quality traits and fatty acid composition by a multivariate technique

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