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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zhros</journal-id><journal-title-group><journal-title xml:lang="ru">Зерновое хозяйство России</journal-title><trans-title-group xml:lang="en"><trans-title>Grain Economy of Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-8725</issn><issn pub-type="epub">2079-8733</issn><publisher><publisher-name>Федеральное государственное бюджетное научное учреждение "Аграрный научный центр "Донской»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31367/2079-8725-2025-100-5-65-69</article-id><article-id custom-type="elpub" pub-id-type="custom">zhros-3232</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СЕЛЕКЦИЯ И СЕМЕНОВОДСТВО СЕЛЬСКОХОЗЯЙСТВЕННЫХ РАСТЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PLANT BREEDING AND SEED PRODUCTION OF AGRICULTURAL CROPS</subject></subj-group></article-categories><title-group><article-title>Поиск аллеля устойчивости к пиренофорозу Tsc2 в образцах озимой мягкой пшеницы</article-title><trans-title-group xml:lang="en"><trans-title>Search for pyrenophorosis resistance allele Tsc2 in winter common wheat samples</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2046-4000</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вожжова</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Vozhzhova</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат сельскохозяйственных наук, старший научный сотрудник</p><p>лаборатория клеточной селекции</p><p>347740; ул. Научный городок, д. 3; Ростовская обл;, Зерноград</p><p>e-mail: vniizk30@mail.ru</p></bio><bio xml:lang="en"><p>Candidate of Agricultural Sciences, senior researcher</p><p>laboratory for cell breeding</p><p>347740; Nauchny Gorodok Str., 3; Rostov region; Zernograd</p><p>e-mail: vniizk30@mail.ru</p></bio><email xlink:type="simple">nvozhzh@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5251-3903</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марченко</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Marchenko</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат сельскохозяйственных наук, ведущий научный сотрудник</p><p>отдел селекции и семеноводства озимой пшеницы</p><p>347740; ул. Научный городок, д. 3; Ростовская обл;, Зерноград</p><p>e-mail: vniizk30@mail.ru</p></bio><bio xml:lang="en"><p>Candidate of Agricultural Sciences, leading researcher</p><p>department of winter wheat breeding and seed production</p><p>347740; Nauchny Gorodok Str., 3; Rostov region; Zernograd</p><p>e-mail: vniizk30@mail.ru</p></bio><email xlink:type="simple">wiza101@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Аграрный научный центр «Донской»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FSBSI Agricultural Research Center “Donskoy”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>09</day><month>11</month><year>2025</year></pub-date><volume>17</volume><issue>5</issue><fpage>65</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вожжова Н.Н., Марченко Д.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Вожжова Н.Н., Марченко Д.М.</copyright-holder><copyright-holder xml:lang="en">Vozhzhova N.N., Marchenko D.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.zhros.online/jour/article/view/3232">https://www.zhros.online/jour/article/view/3232</self-uri><abstract><p>   Озимая мягкая пшеница – это одна из наиболее значимых продовольственных культур в России и во всем мире. Она имеет большое значение для обеспечения продовольственной безопасности. Тем более важно создавать сорта, устойчивые к эпифитотиям опасных листовых болезней, таких как пиренофороз. Одним из главных генов, обеспечивающих устойчивость пшеницы к этому заболеванию, является ген Tsc2. Ранее коллекция и селекционные образцы отдела селекции и семеноводства озимой пшеницы ФГБНУ «АНЦ «Донской» не оцеивались на устойчивость к пиренофорозу методами молекулярной диагностики.</p><p>   Целью работы является изучение коллекционного и селекционного материала озимой мягкой пшеницы для идентификации аллелей гена устойчивости к пиренофорозу Tsc2.</p><p>   Анализ проводили в 2023–2024 гг. в лаборатории клеточной селекции по направлению «маркерная селекция».</p><p>   Объект исследования – 102 образца озимой мягкой пшеницы различного эколого-географического происхождения.</p><p>   Для определения аллелей гена устойчивости к пиренофорозу Tsc2 использовали молекулярный маркер XBE444541. Распределение образцов производили по размерам аллелей: 340 пар нуклеотидов (п. н.) для доминантного, чувствительного к ToxB, типа; 505 п. н. для рецессивного, устойчивого к патогену. В результате проведенного исследования было выявлено широкое аллельное разнообразие у ряда изучаемых образцов. Установлено наличие новых аллелей размерами 400, 450 и 490 пар нуклеотидов. У 48 образцов выявлен доминантный аллель гена Tsc2, связанный с восприимчивостью к токсину ToxB возбудителя пиренофороза. У 11 образцов установлено наличие рецессивного аллеля Tsc2, сцепленного с устойчивостью к заболеванию, но в гетерозиготном аллельном состоянии (АСВ 141, Васса, СО 911, Гром, Liangxing 99, Fuimai 5, Вояж, Универ, Фазенда, 591/20 и 1278/21). Для улучшения устойчивости озимой мягкой пшеницы к пиренофорозу рекомендуем использование в селекционных программах образцов с аллелем tsc2.</p></abstract><trans-abstract xml:lang="en"><p>   Winter common wheat is one of the most important food crops in Russia and worldwide. It plays a vital role in ensuring food safety. This makes it important to develop varieties resistant to dangerous foliar diseases such as pyrenophorosis. One of the key genes providing resistance to this disease is the gene Tsc2. Previously, the collection and breeding samples of the department of winter wheat breeding and seed production of the FSBSI “ARC “Donskoy” were not evaluated for pyrenophorosis resistance using molecular diagnostic methods.</p><p>   The purpose of the current work was to study collection and breeding material of winter common wheat to identify alleles of the pyrenophorosis resistance gene Tsc2.</p><p>   The analysis was conducted in the laboratory of cell breeding, dealing with marker-assisted breeding in 2023–2024.</p><p>   The objects of the study were 102 winter common wheat samples of varying ecological and geographical origins.</p><p>   To identify alleles of the pyrenophorosis resistance gene Tsc2, there has been used the molecular marker XBE444541. The samples were distributed according to allele size with 340 base pairs (bp) for the dominant, ToxB-sensitive type; 505 bp for the recessive, pathogen-resistant type. There has been established an extensive allelic diversity in several samples studied. There have been identified new alleles of 400, 450, and 490 base pairs in size. There has been identified a dominant allele of the gene Tsc2, associated with susceptibility to the ToxB toxin of the pyrenophorosis pathogen in 48 samples. Eleven samples have been found to carry the recessive allele tsc2, which is linked to disease resistance, but in a heterozygous allelic state (ASV 141, Vassa, SO 911, Grom, Liangxing 99, Fuimai 5, Voyazh, Univer, Fazenda, 591/20, and 1278/21). To improve winter common wheat resistance to pyrenophorosis, there has been recommended using samples carrying the allele tsc2in breeding programs.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>озимая мягкая пшеница</kwd><kwd>Tsc2</kwd><kwd>устойчивость</kwd><kwd>аллель</kwd><kwd>пиренофороз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>winter common wheat</kwd><kwd>tsc2</kwd><kwd>resistance</kwd><kwd>allele</kwd><kwd>pyrenophorosis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена по теме государственного задания № 0505-2023-0002</funding-statement><funding-statement xml:lang="en">The work was carried out on the topic of State Assignment No. 0505-2023-0002</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ким Ю. С., Волкова Г. В. 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