Search for the parent material of spring soft wheat resistant to septoria tritici blotch and analysis of the trait inheritance

Харина, А. В.; Шешегова, Т. К.

doi:10.30766/2072-9081.2021.22.2.212-222

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…It was shown that drip liquid water is needed to release asexual spores from pycnids; therefore, precipitation of at least 10 mm, continuous three-day 1 mm rainfall at a moderate temperature, high humidity (98%), or regular dewfall was necessary to trigger wheat infection. Spread of propagules in leaf canopy is accelerated if they are splashed with raindrops [46]. Examples of wheat crops in the Moscow and Kirov regions showed that in rainy weather leaf lesion occurred during the tillering stem elongation period and could lead to plant death [8].…”

Section: Discussionmentioning

confidence: 99%

“…Examples of wheat crops in the Moscow and Kirov regions showed that in rainy weather leaf lesion occurred during the tillering stem elongation period and could lead to plant death [8]. Release of spores from pycnidias did not occur without liquid water and at low humidity, and led to the suppression of the disease [13,46].…”

Section: Discussionmentioning

confidence: 99%

“…Unlike the European regions of Russia [8,46], in Western Siberia, Septoria blotch developed on adult plants during milk-wax ripeness stages, which may be due to the general patterns of precipitation and temperature in the region. The disease damaged wheat under different hydrothermal conditions, both with excessive and insufficient humidity and high temperatures.…”

Section: Discussionmentioning

confidence: 99%

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The Use of Genetic Material of Tall Wheatgrass to Protect Common Wheat from Septoria Blotch in Western Siberia

2023

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The Septoria blotch is one of the most economically harmful diseases of common wheat in Russia and the world. The disease is mainly caused by two pathogen species: Zymoseptoria tritici that damages the leaves, and Parastagonospora nodorum that strikes the leaves and ears. Resistance genes of the alien relatives are traditionally used for genetic defense of cultivars. The aims of the research were to study the resistance of the tall wheatgrass Thinopyrum ponticum (Podp.) Z.-W. Liu and R.-C. Wang and perspective introgressive lines of spring common wheat with its genetic material to Septoria blotch, and to characterize their agronomical properties to be used in breeding programs in Western Siberia. The studies were carried out in 2015–2019 in the field conditions of the southern forest-steppe (Omsk, Russia) on a natural infection background and according to standard methods. The Septoria diseases developed on the wheat in the period of milk-wax ripeness, independently of humid or dry weather conditions. In 2016, a sharp increase in leaf lesion was noted, probably associated with changes in the Z. tritici population. In 2017, the ratio of Z. tritici and P. nodorum was similar, and in 2019 Z. tritici prevailed. During the research, the lines that combined leaf and ear resistance to damage with high yield and grain quality were selected.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The Use of Genetic Material of Tall Wheatgrass to Protect Common Wheat from Septoria Blotch in Western Siberia

2023

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“…Отечественные фитопатологи и селекционеры ведут постоянный поиск сортов и линий с высокими иммунологическими и другими селекционно ценными свойствами (Pakholkova et al, 2022;Sibikeev et al, 2022;Baranova et al, 2023). В производстве должны преимущественно возделываться сорта пшеницы с долговременной неспецифической устойчивостью (Kharina, Sheshegova, 2021).…”

Section: материалы и методыunclassified

Resistance of spring bread wheat cultivars and lines to Septoria leaf blotch, tan spot, and spot blotch pathogens

Zeleneva,

Sudnikovа,

Kovalenkо

et al. 2023

Trudy po prikladnoy botanike, genetike i selektsii

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Background. Leaf and stem diseases of cereal crops are among the most harmful in the agrocenoses of Tambov Province, significantly reducing grain yield and rapidly progressing in many regions of Russia. The aim of the study was to identify spring bread wheat lines and cultivars developed at the Middle-Russian Branch of the I.V. Michurin Federal Science Center that show resistance to leaf and stem diseases.Materials and methods. The target material was represented by 3 cultivars and 23 breeding lines of spring bread wheat. Disease resistance in seedlings was assessed in the laboratory, while for adult plants the process was carried out in the field in 2020–2022. The presence of the Tsn1 allele controlling susceptibility to the PtrToxA fungal toxin was detected using the Xfcp623 molecular marker.Results and conclusions. Accessions with high levels of resistance to Zymoseptoria tritici were identified: L-8252, L-82/60, L-8107, L-8078(23), L-43-9, L-43-1, L-4, Stb-8/15, Stb-7/15, and Stb-92. Accessions Stb-97, Stb-89, Stb-89(a), Stb-90, Stb-34, and Rl-6-22 were resistant to Parastagonospora nodorum; L-8134, L-8114, L-82/60, L-8107, Stb-10/15, Stb-9/15, Stb-8/15, Stb-7/15, Stb-97, Stb-89, Stb-89(a), Stb-90, Stb-34, and Rl-6-22 to P. pseudonodorum; L-8252, L-8107, L-43-9, L-43-1, L-4, Stb10/15, Stb-9/15, Stb-97, Stb-92, Stb-92(a), Stb-89, Stb-89(a), and Stb-34 to Pyrenophora tritici-repentis; and L-8114, L-82/60, L-43-9, L-43-1, L-4, Stb-90, Stb-34, and Rl-6-22 to Bipolaris sorokiniana. The cultivars and breeding lines showed group resistance to two, three or four pathogens. It was Lines L-8252, L-8134, L-82/60, L-8107, L-8078 (23), L-43-9, L-43-1, L-4, Stb-89, Stb-90, Stb-34, and L-33809-7-3 were observed to carry the recessive allele of the tsn1 gene.

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Comparative analysis of methods of assessing spring soft wheat for resistance to <I>Parastagonospora nodorum</I> and search for sources of a trait for breeding

Харина

Шешегова

2022

Аграрная наука Евро-Северо-Востока

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In the conditions of Kirov region (2017-2021), 67 varieties of spring soft wheat were studied according to the degree of resistance to Septoria leaf blotch in the field against the background of the natural development of infection. Under laboratory conditions, the reaction of these wheat varieties to the pathogen was evaluated at the beginning of plant ontogenesis (juvenile resistance) in two experiments: assessment in the development phase of 2-3 leaves (roll culture) and evaluation of a trait on cut-off leaves. For inoculation of plants, local strains of Р. nodorum were used. They were isolated from the affected leaves of spring soft wheat in the phase of milk-wax ripeness. All isolates have been identified by PCR as belonging to the species of Р. nodorum. The validity of using laboratory methods of plant inoculation by Р. nodorum for mass assessment of the gene pool and purposeful search for wheat genotypes resistant to Septoria is based on a reliable (at P≥0.95) correlation (r = 0.57) of resistance at the beginning of ontogenesis and in adult plants. Varieties belonging to one and the same groups in terms of resistance and susceptibility have an even closer relationship (r = 0.69; r = 0.71). It has been established that with an increase in the degree of affection at the beginning of ontogenesis, the biomass of the plant significantly (r = -0.68) decreases, on average by 28 % in the assortment. Of particular interest for breeding of spring wheat are varieties with the most favorable combination of low infection rate and resistance to Septoria leaf blotch during ontogenesis. These varieties include: Turinskaya, Egisar 29 (Russia), Mian Yong No.1, Yan Shi 4, Jin Mai 71 (China), SSL 25-26, SSL 84-85, UL Alta Blanca (USA).

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Search for the parent material of spring soft wheat resistant to septoria tritici blotch and analysis of the trait inheritance

Cited by 4 publications

References 8 publications

The Use of Genetic Material of Tall Wheatgrass to Protect Common Wheat from Septoria Blotch in Western Siberia

The Use of Genetic Material of Tall Wheatgrass to Protect Common Wheat from Septoria Blotch in Western Siberia

Resistance of spring bread wheat cultivars and lines to Septoria leaf blotch, tan spot, and spot blotch pathogens

Comparative analysis of methods of assessing spring soft wheat for resistance to <I>Parastagonospora nodorum</I> and search for sources of a trait for breeding

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