Comparative characteristic of Triticum aestivum/Triticum durum and Triticum aestivum/Triticum dicoccum hybrid lines by genomic composition and resistance to fungal diseases under different environmental conditions

Леонова, И. Н.; Бадаева, Е. Д.; Orlovskaya, O. A.; Röder, Marion S.; Хотылева, Л. В.; Салина, Е. А.; Shumny, V. K.

doi:10.1134/s1022795413110136

Cited by 12 publications

(6 citation statements)

References 14 publications

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“…A list of plant materials is presented in Table S1; for more detailed information on the origin of the accessions, see Leonova et al [77]. The chromosomal localization of alien genetic material in the wheat varieties and ILs was determined based on previous karyotyping by C-banding and genotyping with SSR [78,79] and SNP markers in the framework performed in this study.…”

Section: Plant Materials and Phenotypingmentioning

confidence: 99%

Novel Genetic Loci from Triticum timopheevii Associated with Gluten Content Revealed by GWAS in Wheat Breeding Lines

Leonova,

Kiseleva,

Berezhnaya

et al. 2023

IJMS

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The content and quality of gluten in wheat grain is a distinctive characteristic that determines the final properties of wheat flour. In this study, a genome-wide association study (GWAS) was performed on a wheat panel consisting of bread wheat varieties and the introgression lines (ILs) obtained via hybridization with tetraploid wheat relatives. A total of 17 stable quantitative trait nucleotides (QTNs) located on chromosomes 1D, 2A, 2B, 3D, 5A, 6A, 7B, and 7D that explained up to 21% of the phenotypic variation were identified. Among them, the QTLs on chromosomes 2A and 7B were found to contain three and six linked SNP markers, respectively. Comparative analysis of wheat genotypes according to the composition of haplotypes for the three closely linked SNPs of chromosome 2A indicated that haplotype TT/AA/GG was characteristic of ten ILs containing introgressions from T. timopheevii. The gluten content in the plants with TT/AA/GG haplotype was significantly higher than in the varieties with haplotype GG/GG/AA. Having compared the newly obtained data with the previously reported quantitative trait loci (QTLs) we inferred that the locus on chromosome 2A inherited from T. timopheevii is potentially novel. The introgression lines containing the new locus can be used as sources of genetic factors to improve the quality traits of bread wheat.

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Section: Plant Materials and Phenotypingmentioning

confidence: 99%

Novel Genetic Loci from Triticum timopheevii Associated with Gluten Content Revealed by GWAS in Wheat Breeding Lines

Leonova,

Kiseleva,

Berezhnaya

et al. 2023

IJMS

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“…As a result, stable lines that can serve as donors of genes for resistance to powdery mildew, brown and stem rust, and septariose were produced. Chromosomes (4B and 5B) containing genes that contribute to the formation of a disease resistance complex were identified [9].…”

Section: Immunity and Ecological Plasticitymentioning

confidence: 99%

“…Therefore, intense studies are conducted all over the world to ensure adequate wheat immune defenses and to develop anticipatory protective systems. These studies include the search for new resistance genes among wild and cultivated relatives and their introgression into the wheat genome to develop highly immune forms [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Genetics and genomics of wheat: Storage proteins, ecological plasticity, and immunity

Novoselskaya-Dragovich

2015

Russ J Genet

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Recent advances in genetics and genetic research methods made it possible to explain the large polymorphism observed among storage proteins of wheat grain (gliadins and glutenins), to determine their genetic control mechanism, and to develop a system for the identification of wheat genotypes on the basis of multiple allelism. This system has extremely high sensitivity and efficiency, which makes it possible to con duct studies to determine the purity and authenticity of wheat cultivars, the dynamics of alleles diversity in time and space, the phylogenetics, etc., through the use of an extensive database on the allelic composition of gliadin loci. An investigation of the molecular structure of genes controlling the synthesis of storage pro teins and their organization on chromosomes, as well as an analysis of wheat genome structure, revealed the molecular mechanisms of variability in the wheat genome and its reorganization in response to changes in environmental conditions and cultivation technologies. The multilevel genetic system of protection against pathogens and adverse environmental factors that developed in the course of wheat evolution continues to astound researchers' imagination with new resistance genes and novel types of antimicrobial peptides having been discovered and sequenced in recent years and the diversity of their structures and mechanisms of action in response to pathogens. An analysis of nucleotide sequences involved in wheat domestication, namely, those that define ecological plasticity, i. e. the type of plant development (Vrn genes), and those responsible for spikelet traits (Q genes), which ensured the successful cultivation of wheat by humans, revealed that the basis for these features are specific mutations.

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“…At the same time, the increase in demand for energy resources has led to an increase in the cost of agricultural machinery, fertilizers, herbicides, fuel, and, consequently, the cost of manufactured products, which in connection with increasing demand leads to a constant and steady rise in prices for food products [7,8].…”

Section: Introductionmentioning

confidence: 99%

Main directions of development of agro-technologies for production of spring wheat species for sustainable agriculture in the forest-steppe of the middle Volga region

et al. 2020

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The article presents the results of research conducted in different soil and climatic conditions of the Middle Volga region on the influence of regulated factors, as well as environmental factors on the production process of plants of various types of spring wheat. The amount of photosynthetically active radiation (PAR) is enough to obtain yields within 12–13 tons of dry biomass or 6–7 tons of grain. Natural precipitation is able to provide 3.82–4.36 t of spring wheat grain from 1 ha, and 4.5–6.3 t/ha by the total influence of solar energy, heat and moisture supply. Natural level of soil fertility without application of organic and mineral fertilizers allows to receive about 2 tons of spring wheat grain from 1 ha. Application of nitrogen in the form of ammoniac water (N-20.5 %) increased the yield in comparison with the use of nitrogen in the form of ammoniac saltpeter: the increase was 0.14 t per 1 ha. In the conditions of grey forest soil in the Predkamye region of the Republic of Tatarstan the optimal norm of sowing of spring wheat Triticum dicoccum Schuebl (spelt) depending on the feeding background was established. Growth of yield at sowing of 6 million seeds per hectare at all levels of nutrition in comparison with sowing rate of 4 million tons per hectare was 0.18 tons per hectare against the natural background, against the estimated background of NRC on 2.0 tons of grain – 0.19 tons and 2.5 tons of grain – 0.24 tons per hectare. The maximum yield increase was received at a combination of a mineral foodstuff with an optimum norm of sowing and has made on a settlement background 2 tons of grain from hectare – 0.20 tons, on 2.5 tons of grain – 0.34 tons from hectare. Thus, the aim of our research was to develop methods of growing high yielding quality grain of different types of wheat adapted to the conditions of forest-steppe in the Volga region.

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Comparative characteristic of Triticum aestivum/Triticum durum and Triticum aestivum/Triticum dicoccum hybrid lines by genomic composition and resistance to fungal diseases under different environmental conditions

Cited by 12 publications

References 14 publications

Novel Genetic Loci from Triticum timopheevii Associated with Gluten Content Revealed by GWAS in Wheat Breeding Lines

Novel Genetic Loci from Triticum timopheevii Associated with Gluten Content Revealed by GWAS in Wheat Breeding Lines

Genetics and genomics of wheat: Storage proteins, ecological plasticity, and immunity

Main directions of development of agro-technologies for production of spring wheat species for sustainable agriculture in the forest-steppe of the middle Volga region

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