INLUENCE OF ALIEN GENETIC MATERIAL ON THE MANIFESTATION OF AGRONOMICALLY IMPORTANT TRAITS OF COMMON WHEAT (T. aestivum L.)

Леонова, И. Н.

doi:10.18699/vj18.367

Cited by 6 publications

(4 citation statements)

References 49 publications

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“…Varieties bred in Samara are used in Russian breeding programs (Martynov et al, 2016;Leonova, 2018). The goal of this work was to obtain breeding material with introgressed wheatgrass chromosome, test its commercially significant indices, and investigate the transfer of Th.…”

Section: стрессоустойчивость растений / Stress Resistance In Plantsmentioning

confidence: 99%

“…Wild perennial common wheat relatives of the Thinopyrum genus are broadly polymorphic. They can be sources of commercially valuable traits: resistance to fungal and viral diseases (Friebe et al, 1996;Li H., Wang, 2009;Krupin et al, 2013Krupin et al, , 2019Davoyan et al, 2015;Leonova, 2018), tolerance of saline soils and drought, and high protein contents in the grain (Tsitsin, 1954;Upelniek et al, 2012). The Thinopyrum genus includes about 20 species of different ploidies: diploids, allotetraploids, allohexaploids, octoploids, and decaploids (Wang R., 2011).…”

Section: Introductionmentioning

confidence: 99%

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Raise and characterization of a bread wheat hybrid line (Tulaykovskaya 10 × Saratovskaya 29) with chromosome 6Agi2 introgressed from Thinopyrum intermedium

et al. 2021

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Wheatgrass Thinopyrum intermedium is a source of agronomically valuable traits for common wheat. Partial wheat–wheatgrass amphidiploids and lines with wheatgrass chromosome substitutions are extensively used as intermediates in breeding programs. Line Agis 1 (6Agi2/6D) is present in the cultivar Tulaykovskaya 10 pedigree. Wheatgrass chromosome 6Agi2 carries multiple resistance to fungal diseases in various ecogeographical zones. In this work, we studied the transfer of chromosome 6Agi2 in hybrid populations Saratovskaya 29×Tulaykovskaya 10 (S29×T10) and Tulaykovskaya 10×Saratovskaya 29 (T10×S29). Chromosome 6Agi2 was identified by PCR with chromosome-specific primers and by genomic in situ hybridization (GISH). According to molecular data, 6Agi2 was transmitted to nearly half of the plants tested in the F2 and F3 generations. A new breeding line 49-14 (2n = 42) with chromosome pair 6Agi2 was isolated and characterized in T10×S29 F5 by GISH. According to the results of our field experiment in 2020, the line had high productivity traits. The grain weights per plant (10.04±0.93 g) and the number of grains per plant (259.36±22.49) did not differ significantly from the parent varieties. The number of grains per spikelet in the main spike was significantly higher than in S29 (p ≤ 0.001) or T10 (p ≤ 0.05). Plants were characterized by the ability to set 3.77±0.1 grains per spikelet, and this trait varied among individuals from 2.93 to 4.62. The grain protein content was 17.91 %, and the gluten content, 40.55 %. According to the screening for fungal disease resistance carried out in the field in 2018 and 2020, chromosome 6Agi2 makes plants retain immunity to the West Siberian population of brown rust and to dominant races of stem rust. It also provides medium resistant and medium susceptible types of response to yellow rust. The possibility of using lines/varieties of bread wheat with wheatgrass chromosomes 6Agi2 in breeding in order to increase protein content in the grain, to confer resistance to leaf diseases on plants and to create multiflowered forms is discussed.

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Section: стрессоустойчивость растений / Stress Resistance In Plantsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Raise and characterization of a bread wheat hybrid line (Tulaykovskaya 10 × Saratovskaya 29) with chromosome 6Agi2 introgressed from Thinopyrum intermedium

et al. 2021

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“…Over 80 Lr genes have been identified around the world, with about 50 % classified as alien ones 1 . The list of genes used in commercial common wheat varieties includes Lr9, Lr19, Lr21, Lr23, Lr24, Lr26, Lr28, Lr37, Lr39 (AktarUzZaman et al, 2017;Leonova, 2018), Lr6Agi1, Lr6Agi2 (Sibikeev et al, 2017), and LrSp2 (Adonina et al, 2018). In Russia, breeding value is assigned to the samples carrying partially effective genes Lr9, Lr19, Lr24, Lr25, Lr26, Lr6Agi1, Lr6Agi2 and highly effective protective genes Lr28, Lr29, Lr39, Lr42, Lr45, Lr47, Lr50, Lr51, Lr66, LrSp2 (Gultyaeva, Shaydayuk, 2021;Sochalova et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Studying a collection of common-wheat varieties for leaf rust resistance, crop yield and grain quality in the environmental conditions of Novosibirsk region

Sochalova,

Aparina,

Boyko

et al. 2023

Vestn. VOGiS

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The relationship between a variety’s genotype, environmental conditions and phytopathogenic load are the key factors contributing to high yields that should be taken into account in selecting donors for resistance and high manifestation of valuable traits. The study of leaf rust resistance in 49 common wheat varieties was carried out in the field against the natural pathogen background and under laboratory conditions using single-pustule isolates with virulence to Lr9 and Lr24. It has been shown that the varieties carrying alien genes Lr6Agi2 (Tulaikovskaya 10) and Lr6Agi1 (Voevoda) were resistant to leaf rust infection both in the field and in the laboratory. Varieties KWS Buran, KWS Akvilon, KW 240-3-13, and Etyud producing crop yields from 417 to 514 g/m2 comparable to the best standard variety Sibirskaya 17 can be reasonably used as Lr24 resistance gene donors under West Siberian conditions. Oms kaya 44 variety showing crop yield of 440g/m2 can be used as a donor for Lr19 and partially effective Lr26. Varieties Tuleevskaya and Altayskaya 110 with Lr9 in their genomes are recommended for the development of resistance gene-pyramided genotypes. The highest protein and gluten contents were observed in the CS2A/2M sample, while KWS Buran, Altayskaya 110, Volgouralskaya, and KWS Akvilon showed the lowest values. Varieties CS2A/2M, Tulaikovskaya 10, Pavon, and Tuleevskaya were ranked the highest in micro- (Cu, Mn, Zn, Fe) and macronutrient (Ca, Mg, K) contents among the common wheat samples from the collection, while the lowest values for most elements were observed in KWS Buran, Novosibirskaya 15, and Volgouralskaya. Winter varieties demonstrating leaf rust resistance against the infectious background typically carry adult plant resistance genes (Lr34, Lr12, and Lr13), particularly combined with the juvenile Lr26 gene. The presence of Lr41 in a winter type line (KS 93 U 62) allowed it to maintain resistance against a leaf rust pathogen clone kLr24, despite the presence of Lr24 in the genotype. Varieties Doka and Cheshskaya 17 may act as donors of resistance genes Lr26 + Lr34 and Lr9 + Lr12 + Lr13 + Lr34, as well as sources of dwarfing without losses in winter hardiness and yield under West Siberian conditions.

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“…Для широкого использования форм пшеницы с транслокациями важно место локализации чужеродного фрагмента на хромосоме пшеницы, синтения хромосомы донора хромосоме реципиента, обеспечивающая хорошую компенсационную способность хромосомы донора, а также нормальная передача интрогрессированного материала потомству, желательно по законам Менделя. Несмотря на то что в генбанках мира в большом количестве созданы и хранятся линии пшеницы с транслокациями, лишь малая часть коллекции используется в качестве пребридингового материала (Friebe et al, 1996;Леонова, 2018). Во многих случаях это объясняется отсутствием компенсационной способности чужеродной интрогрессии.…”

Section: Introductionunclassified

The creation and characterization of the bread wheat line with a centric translocation T2DL.2RL

et al. 2019

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The development of bread wheat introgressions with alien genetic material from cultural and wild Triticeae species is an effective method for expanding the wheat gene pool necessary for breeding. To date, numerous collections of introgressions as substitutions and chromosome modifications have been obtained; however, the creation and study of wheat with new valuable traits still remain an important line of research. Rye Secale cereale L., whose chromosomes carry genes that control valuable economic and biological characteristics and properties, is widely used to produce new wheat forms. In this study, a wheat-rye translocation obtained by backcrossing the wheat-rye disomic-substitution line 2R(2D)1 with the variety Novosibirskaya 67 was characterized. The chromosomal composition of karyotypes was studied using fluorescent in situ hybridization and C-banding. Two centric translocations, derived from two long arms of chromosomes 2D and 2R, T2DL.2RL, were identified, the remaining 40 wheat chromosomes did not undergo modifications. Meiosis in the lines was stable. Chromosomes T2DL.2RL formed bivalents in all meiocytes, which confirmed their homology. The morphological characteristics of the spike in the T2DL.2RL line and Novosibirskaya 67 did not differ. A comparative analysis of productivity between the T2DL.2RL translocation line and the parental forms, Novosibirskaya 67 and the 2R(2D)1 line, was carried out. The T2DL.2RL line is inferior to Novosibirskaya 67 in all characters with different confidence levels. The productivity characters of the 2R(2D)1 line exceeded or did not differ from those of T2DL.2RL, however, the mass of 1000 grains was significantly lower. The results showed the effect of the T2DL.2RL translocation on the trait “plant height”. This character was significantly lower than that of Novosibirskaya 67 in two vegetation periods. Consequently, the T2DL.2RL translocation reduces plant height and productivity.

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INLUENCE OF ALIEN GENETIC MATERIAL ON THE MANIFESTATION OF AGRONOMICALLY IMPORTANT TRAITS OF COMMON WHEAT (T. aestivum L.)

Cited by 6 publications

References 49 publications

Raise and characterization of a bread wheat hybrid line (Tulaykovskaya 10 × Saratovskaya 29) with chromosome 6Agi2 introgressed from Thinopyrum intermedium

Raise and characterization of a bread wheat hybrid line (Tulaykovskaya 10 × Saratovskaya 29) with chromosome 6Agi2 introgressed from Thinopyrum intermedium

Studying a collection of common-wheat varieties for leaf rust resistance, crop yield and grain quality in the environmental conditions of Novosibirsk region

The creation and characterization of the bread wheat line with a centric translocation T2DL.2RL

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