Prebreeding research of near-isogenic lines of spring bread wheat with a combination of translocations from Agropyron elongatum (Host.) Р.В. and Aegilops ventricosa Tausch.

Сибикеев, Н.; Дружин, Е.

doi:10.18699/vj15.040

Cited by 5 publications

(3 citation statements)

References 14 publications

(14 reference statements)

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“…В то же время ранее было показано, что комбинация генов Sr25+Sr38 эффективна в Курганской и Челябинской областях (Druzhin et al, 2018). Показано также, что сочетание потерявших эффективность против возбудителя бурой ржавчины генов Lr19/Sr25 и Lr37/Sr38/Yr17 у линий яровой мягкой пшеницы Л653 и Л654, с одной стороны, обусловило их высокую устойчивость к бурой ржавчине и, с другой стороны -к расе стеблевой ржавчины Ug99+Sr24 (Sibikeev, Druzhin, 2015). В нашем исследовании четыре линии, несущие сочетание генов Sr25+Sr38, оказались устойчивыми ко всем популяциям Pgt, а одна была гетерогенна по устойчивости к татарстанской популяции гриба.…”

Section: обсуждение результатовunclassified

Analysis of resistance to stem rust and identification of <i>Sr</i> genes in introgressive lines of spring bread wheat

Баранова

Sibikeev²,

Konkova³

2023

Trudy po prikladnoy botanike, genetike i selektsii

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Background. Due to the increase in the harmfulness of wheat stem rust (Puccinia graminis f. sp. tritici Erikss. & E. Henn.) in the Volga region, and the likelihood of the spread of the aggressive Ug99 race, an assessment of the genetic diversity of wheat breeding lines and identification of effective Sr genes are of fundamental importance.Materials and methods. Ninety spring bread wheat introgressive lines with stem rust resistance, developed at the Federal Center of Agriculture Research of the South-East Region, were analyzed. Molecular markers were used to identify resistance genes: Sr24/Lr24, Sr25/Lr19, Sr26, Sr28, Sr31/Lr26, Sr32, Sr36, Sr38/Lr37, Sr39 and Sr57/Lr34. The analysis of plants for resistance was carried out according to standard methods; the Stakman scale was applied to determine the type of reaction.Results. The genes Sr31/Lr26, Sr25/Lr19, Sr57/Lr34, Sr38/Lr37 and Sr39/Lr35 were identified in the analyzed breeding lines. Sr25 was found in 51 lines (56,7% of samples), Sr31 in 41 lines (45.6%), Sr57/Lr34 in 5 lines, Sr38 in 10 lines and Sr39 in one line. Combinations of resistance genes were identified: Sr31+Sr25 in 28 lines (31.1%), Sr25+Sr38 in 5 lines, and Sr25+Sr39 in one line. The Sr24/Lr24, Sr26, Sr28, Sr32 and Sr36 genes were not identified.Conclusion. As a result, promising highly resistant introgressive wheat lines with promising combinations of Sr31+Sr25, Sr25+Sr38 and Sr25+Sr39 genes were identified. They can be used in Russian breeding programs for immunity.

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Section: обсуждение результатовunclassified

Analysis of resistance to stem rust and identification of <i>Sr</i> genes in introgressive lines of spring bread wheat

Баранова

Sibikeev²,

Konkova³

2023

Trudy po prikladnoy botanike, genetike i selektsii

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“…По настоящее время он остается эффективным на Северо-Западе России и на Урале. Установлено, что эффект гена Lr37 усиливается в сочетании с частично эффективными генами (Sibikeev, Druzhin, 2015).…”

Section: результаты и обсуждениеunclassified

Diversity of new Russian bread wheat cultivars according to leaf rust resistance genes

Gultyaeva

Shaydayuk

Veselova

et al. 2022

Trudy po prikladnoy botanike, genetike i selektsii

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Background. Cultivation of resistant cultivars is an effective method of wheat protection against leaf rust. The purpose of this work was to characterize the juvenile leaf rust resistance of bread wheat cultivars listed in the State Register for Selection Achievements in 2021 and identify their Lr genes using molecular markers.Materials and methods. The material included 18 cultivars of winter bread wheat and nine spring ones. Juvenile resistance in the seedling phase was assessed with two test clones (kLr9 и kLr19) and the Krasnodar population of Puccinia triticina Erikss. Molecular markers were used to identify 18 Lr genes.Results and discussion. A high level of resistance (score 0 or 0;) was shown by cvs. ‘Khamdan’, ‘Sharm’ and ‘Omskaya 44’; moderate resistance (score 2, 2+) by ‘Albidum 2030’. Reactions of ‘Polina’, ‘Rossyp’, ‘Status’, ‘Balkysh’ and ‘Bogema’ were variable. The studied cultivars did not contain juvenile genes Lr9, Lr24, Lr25, Lr28, Lr29, Lr39, Lr47 or Lr66 and adult plant resistance genes Lr21 and Lr35. Markers of identifiable genes were not detected in cv. ‘Sharm’, highly resistant to leaf rust. ‘Khamdan’ had an ineffective Lr10 gene and a partial resistance gene Lr34, which offered no protection in the seedling stage. These cultivars seem to contain additional resistance genes. A high level of resistance to leaf rust in ‘Omskaya 44’ is provided by a combination of the Lr19, Lr26, Lr1 and Lr3 genes. In ‘Nemchinovskaya 85’, the partially effective adult plant resistance gene Lr37 was identified. In other tested cultivars, Lr1, Lr3, Lr10, Lr26 and Lr34 were widely represented.

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“…The T. ponticum genetic material was used for breeding hardy winter common and durum wheat cultivars as well as those resistant to unstable moisture conditions. Spring common and durum wheat cultivars bearing translocation 7DL-7Ai (with known Lr19/Sr25-genes) produced high yields in the areas with unstable humidity: the Volga region, Omsk Oblast, and Italy (Upelniek et al, 2012;Sibikeev, Druzhin, 2015;Kuzmanović et al, 2018;Belan et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Drought resistance of introgressive spring common wheat lines with genetic material of tall wheatgrass

Plotnikova

Сагендыкова²,

Kuzmina

2023

Trudy po prikladnoy botanike, genetike i selektsii

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Background. To breed drought-resistant cultivars of common wheat1 (Triticum aestivum L.), it is important to use the gene pools of its relatives, including tall wheatgrass Thinopyrum ponticum (Podpěra) Z.-W. Liu & R.- C. Wang (= Agropyron elongatum (Host) Beauv.). Materials and methods. The introgressive lines of spring common wheat with T. ponticum genetic material and standard cultivars were studied in the field in the southern forest-steppe of Western Siberia using generally recognized methods. The ecological plasticity of cultivars and introgressive lines by grain yield and yield components was calculated according to the method of S. A. Eberhart and W. A. Russell. During the research period, there was a prolonged drought in 2012, and irregular short severe droughts occurred in 2013, 2014, and 2017. Results. An analysis of the ecological plasticity of standard cultivars adapted to the regional conditions showed that cv. ‘Pamyati Azieva’ corresponded to the extensive type, and cvs. ‘Duet’, and ‘Erythrospermum 59’ corresponded to the intensive type. Under drought conditions, the grain yield of cv. ‘Pamyati Azieva’ was determined by the stable development of productive tiller number, seed number and grain yield per main ear, but plasticity in 1000 grain weight was observed. Cvs. ‘Duet’ and ‘Erythrospermum 59’ showed ecological plasticity due to the adaptive development of two or three yield components. Introgressive lines exceeded the standard cultivars in grain yield (1.1–2.2 times) in dry seasons. Five lines were similar to cv. ‘Pamyati Azieva’ in plasticity and stability, and under drought conditions they demonstrated high and stable development of three or four yield components. The intensive lines formed their yield due to the compensatory development of three yield components in different combinations. Conclusion. Introgressive lines with T. ponticum genetic material are valuable for breeding spring common wheat cultivars with various drought-adaptation mechanisms.

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Prebreeding research of near-isogenic lines of spring bread wheat with a combination of translocations from Agropyron elongatum (Host.) Р.В. and Aegilops ventricosa Tausch.

Cited by 5 publications

References 14 publications

Analysis of resistance to stem rust and identification of <i>Sr</i> genes in introgressive lines of spring bread wheat

Analysis of resistance to stem rust and identification of <i>Sr</i> genes in introgressive lines of spring bread wheat

Diversity of new Russian bread wheat cultivars according to leaf rust resistance genes

Drought resistance of introgressive spring common wheat lines with genetic material of tall wheatgrass

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