Genetic Enhancement of Grain Quality-Related Traits in Maize

Hartings, H.; Fracassetti, Marco; Motto, M.

doi:10.5772/32758

Cited by 7 publications

(4 citation statements)

References 106 publications

(94 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Many maize mutants have been widely used to isolate genes encoding key enzymes in starch metabolism, as well as genes regulating zeins, maize primary storage proteins, synthesis and deposition [9, 10]. Currently, high-throughput genomics and post-genomics approaches are providing new tools to better understand the genetic and biochemical networks operating during maize kernel development, contributing ultimately to its composition, and a high degree of complexity and regulation has been found [9].…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association study for kernel composition and flour pasting behavior in wholemeal maize flour

et al. 2019

View full text Add to dashboard Cite

Background Maize is a crop in high demand for food purposes and consumers worldwide are increasingly concerned with food quality. However, breeding for improved quality is a complex task and therefore developing tools to select for better quality products is of great importance. Kernel composition, flour pasting behavior, and flour particle size have been previously identified as crucial for maize-based food quality. In this work we carried out a genome-wide association study to identify genomic regions controlling compositional and pasting properties of maize wholemeal flour. Results A collection of 132 diverse inbred lines, with a considerable representation of the food used Portuguese unique germplasm, was trialed during two seasons, and harvested samples characterized for main compositional traits, flour pasting parameters and mean particle size. The collection was genotyped with the MaizeSNP50 array. SNP-trait associations were tested using a mixed linear model accounting for genetic relatedness. Fifty-seven genomic regions were identified, associated with the 11 different quality-related traits evaluated. Regions controlling multiple traits were detected and potential candidate genes identified. As an example, for two viscosity parameters that reflect the capacity of the starch to absorb water and swell, the strongest common associated region was located near the dull endosperm 1 gene that encodes a starch synthase and is determinant on the starch endosperm structure in maize. Conclusions This study allowed for identifying relevant regions on the maize genome affecting maize kernel composition and flour pasting behavior, candidate genes for the majority of the quality-associated genomic regions, or the most promising target regions to develop molecular tools to increase efficacy and efficiency of quality traits selection (such as “breadability”) within maize breeding programs. Electronic supplementary material The online version of this article (10.1186/s12870-019-1729-7) contains supplementary material, which is available to authorized users.

show abstract

Section: Introductionmentioning

confidence: 99%

Genome-wide association study for kernel composition and flour pasting behavior in wholemeal maize flour

et al. 2019

View full text Add to dashboard Cite

show abstract

“…This study applies an association mapping approach using the previously characterized inbred lines that differ for endosperm types and colors. QTL associated candidate genes will be identify on the basis of positional information of the recently maize cloned genes (reviewed by [75]). Candidate genes will be validated on the enduring landraces [7] and modern improved OPVs (VASO project) that are also being characterized at genetic, nutritional, organoleptic (aroma volatiles) composition and antioxidants bioactivity.…”

Section: Development Of Molecular Tools For Assisting Quality Selectionmentioning

confidence: 99%

Participatory Plant Quality Breeding: An Ancient Art Revisited by Knowledge Sharing. The Portuguese Experience

Patto¹,

Mendes-Moreira²,

Alves³

et al. 2013

Plant Breeding From Laboratories to Fields

View full text Add to dashboard Cite

“…Из 13 известных генов, контролирующих признак сахарного эндосперма, наибольшее распространение нашли три из них: sugary (su), srunken (sh), sugary extender (se) (Paliy, 1989;Motto et al, 2010;Hartings et al, 2012). Наи большее распространение в производстве имеют сорта и гибриды сахарной кукурузы, созданные на основе гена su с содержанием сахара 5-10%.…”

Section: Introductionunclassified

Comparative analysis of the chemical composition and size of starch granules in grain between diploid and tetraploid sweetcorn cultivars

Khatefov

Хорева

Керв

et al. 2021

Trudy po prikladnoy botanike, genetike i selektsii

View full text Add to dashboard Cite

Background. Improving the taste and nutritional value of sweetcorn using genetic selection techniques is an important trend. The tetraploid sugary maize cultivar ‘Baksanskaya sakharnaya’ (k-23426) has a number of advantages in terms of taste and marketability over traditional diploid varieties.The purpose of the research was to identify the distinctive biochemical characteristics that affect the taste of this cultivar in comparison with the diploid reference (cv. ‘Rannyaya Lakomka’, с-1775).Materials and methods. The differences in phenotypic traits between diploid (2n) and tetraploid (4n) maize plants were assessed. Infrared spectroscopy was used to study the difference in the biochemical composition of kernels in terms of protein, starch and oil content. Accumulation of metabolites in a dry kernel was studied using gas–liquid chromatography with mass spectrometry.Results. Comparison of the phenotypic traits in 2n and 4n sweetcorn plants showed that 4n had a better ear structure, protein and oil content. Analysis of metabolites showed that quantitative indicators of chemical components changed in kernels of the 4n sweetcorn without changing the qualitative composition. The chemical composition of the metabolites in 4n sweetcorn grain was characterized by an increase in the synthesis of most organic acids and protein amino acids, phosphoric acid, fatty acids, some monosaccharides, phenolic compounds, and phytosterols. A decrease in the content of most polyhydric alcohols, disaccharides, trisaccharides, some monosaccharides, and phenolic compounds was observed. An inhibitory effect of a su2 gene dose on the size of starch granules was found. Conclusion. The studies showed the advantage of the 4n sweetcorn over the 2n one due to its improved ear structure and biochemical composition, which positively affected the taste qualities.

show abstract

Genetic Enhancement of Grain Quality-Related Traits in Maize

Cited by 7 publications

References 106 publications

Genome-wide association study for kernel composition and flour pasting behavior in wholemeal maize flour

Genome-wide association study for kernel composition and flour pasting behavior in wholemeal maize flour

Participatory Plant Quality Breeding: An Ancient Art Revisited by Knowledge Sharing. The Portuguese Experience

Comparative analysis of the chemical composition and size of starch granules in grain between diploid and tetraploid sweetcorn cultivars

Contact Info

Product

Resources

About