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Phenolic content variability and its chromosome location in tritordeum

AuthorsNavas-López, José F.; Ostos-Garrido, Francisco J.; Castillo, Almudena ; Martín, Antonio ; Giménez, María J. ; Pistón, Fernando
Plant breeding
Chromosome sustitution
Flour quality
Issue Date30-Jan-2014
PublisherFrontiers Media
CitationFrontiers in Plant Science 5: 10 (2014)
AbstractFor humans, wheat is the most important source of calories, but it is also a source of antioxidant compounds that are involved in the prevention of chronic disease. Among the antioxidant compounds, phenolic acids have great potential to improve human health. In this paper we evaluate the effect of environmental and genetic factors on the phenolics content in the grain of a collection of tritordeums with different cytoplasm and chromosome substitutions. To this purpose, tritordeum flour was used for extraction of the free, conjugates and bound phenolic compounds. These phenolic compounds were identified and quantified by RP-HPLC and the results were analyzed by univariate and multivariate methods. This is the first study that describes the composition of phenolic acids of the amphiploid tritordeum. As in wheat, the predominant phenolic compound is ferulic acid. In tritordeum there is great variability for the content of phenolic compounds and the main factor which determines its content is the genotype followed by the environment, in this case included in the year factor. Phenolic acid content is associated with the substitution of chromosome DS1D(1Hch) and DS2D(2Hch), and the translocation 1RS/1BL in tritordeum. The results show that there is high potential for further improving the quality and quantity of phenolics in tritordeum because this amphiploid shows high variability for the content of phenolic compounds. © 2014 Navas-Lopez, Ostos-Garrido, Castillo, Martín, Gimenez and Pistón.
Publisher version (URL)http://dx.doi.org/10.3389/fpls.2014.00010
Identifiersdoi: 10.3389/fpls.2014.00010
issn: 1664-462X
Appears in Collections:(IAS) Artículos
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