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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">biosel</journal-id><journal-title-group><journal-title xml:lang="ru">Биотехнология и селекция растений</journal-title><trans-title-group xml:lang="en"><trans-title>Plant Biotechnology and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2658-6266</issn><issn pub-type="epub">2658-6258</issn><publisher><publisher-name>VIR</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30901/2658-6266-2021-3-o3</article-id><article-id custom-type="elpub" pub-id-type="custom">biosel-135</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>МЕТОДЫ МОЛЕКУЛЯРНОЙ ГЕНЕТИКИ В СЕЛЕКЦИИ РАСТЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METHODS OF MOLECULAR GENETICS IN PLANT BREEDING</subject></subj-group></article-categories><title-group><article-title>Идентификация носителей аллеля mlo11(cnv2) устойчивости к мучнистой росе среди ячменей коллекции ВИР</article-title><trans-title-group xml:lang="en"><trans-title>Identification of barley accessions from the VIR collection carrying the mlo11(cnv2) powdery mildew resistance allele</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5531-2728</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдуллаев</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullaev</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>190000 Россия, г. Санкт-Петербург, ул. Б. Морская, 42, 44;  Отдел генетики, старший научный сотрудник; к.б.н.</p></bio><bio xml:lang="en"><p>42, 44, Bolshaya Morskaya Street, St. Petersburg 190000, Russia</p></bio><email xlink:type="simple">abdullaev.1988@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5531-2728</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алпатьева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alpatieva</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>190000 Россия, г. Санкт-Петербург, ул. Б. Морская, 42, 44;  Отдел генетики, старший научный сотрудник; к.б.н.</p></bio><bio xml:lang="en"><p>42, 44, Bolshaya Morskaya Street, St. Petersburg 190000, Russia</p></bio><email xlink:type="simple">alpatievanatalia@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2344-9233</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедева</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>190000 Россия, г. Санкт-Петербург, ул. Б. Морская, 42, 44;  Отдел генетики, старший научный сотрудник; к.б.н.</p></bio><bio xml:lang="en"><p>42, 44, Bolshaya Morskaya Street, St. Petersburg 190000, Russia</p></bio><email xlink:type="simple">tlebedeva47@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3990-6526</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковалева</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovaleva</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>190000 Россия, г. Санкт-Петербург, ул. Б. Морская, 42, 44;  Отдел генетических ресурсов овса, ржи и ячменя; к.б.н.</p></bio><bio xml:lang="en"><p>42, 44, Bolshaya Morskaya Street, St. Petersburg 190000, Russia</p></bio><email xlink:type="simple">o.kovaleva@vir.nw.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3019-0306</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Радченко</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Radchenko</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>190000 Россия, г. Санкт-Петербург, ул. Б. Морская, 42, 44;  Отдел генетики, главный научный сотрудник, руководитель отдела генетики и лаборатории иммунитета; д.б.н.</p></bio><bio xml:lang="en"><p>42, 44, Bolshaya Morskaya Street, St. Petersburg 190000, Russia</p></bio><email xlink:type="simple">eugene_radchenko@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0474-8860</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анисимова</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Anisimova</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>190000 Россия, г. Санкт-Петербург, ул. Б. Морская, 42, 44;  Отдел генетики, ведущий научный сотрудник ; д.б.н.</p></bio><bio xml:lang="en"><p>42, 44, Bolshaya Morskaya Street, St. Petersburg 190000, Russia</p></bio><email xlink:type="simple">irina_anisimova@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральный исследовательский центр Всероссийский институт генетических ресурсов растений имени Н.И. Вавилова<country>Россия</country></aff><aff xml:lang="en">N.I. Vavilov All-Russian Institute of Plant Genetic Resources<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>14</day><month>12</month><year>2021</year></pub-date><volume>4</volume><issue>3</issue><fpage>37</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Абдуллаев Р.А., Алпатьева Н.В., Лебедева Т.В., Ковалева О.Н., Радченко Е.Е., Анисимова И.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Абдуллаев Р.А., Алпатьева Н.В., Лебедева Т.В., Ковалева О.Н., Радченко Е.Е., Анисимова И.Н.</copyright-holder><copyright-holder xml:lang="en">Abdullaev R.A., Alpatieva N.V., Lebedeva T.V., Kovaleva O.N., Radchenko E.E., Anisimova I.N.</copyright-holder><license 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://biosel.elpub.ru/jour/article/view/135">https://biosel.elpub.ru/jour/article/view/135</self-uri><abstract><p>Актуальность. Поиск генотипов ячменя Hordeum vulgare L., носителей эффективных генов устойчивости к возбудителю мучнистой росы Blumeria graminis f. sp. hordei , актуален для российской селекции. Аллель mlo11, обеспечивающий длительную защиту ячменя от патогена, редко встречается среди допущенных к выращиванию на территории России сортов. Информации о встречаемости среди российских сортов другого эффективного аллеля – mlo11(cnv2) – нет, поэтому поиск его источников актуален. Материал и методы. В полевых и лабораторных условиях, изучили устойчивость 7 образцов ячменя из Эфиопии и 7 – из Японии к северо-западной популяции возбудителя мучнистой росы. Для идентификации аллелей гена Mlo были определены нуклеотидные последовательности фрагментов MITE (миниатюрного инвертированного мобильного элемента Stowaway-типа) и прилегающего промоторного участка. Результаты. С помощью фитопатологических тестов в поле и условиях теплицы, а также молекулярных маркеров, были исследованы 14 образцов ячменя из Эфиопии и Японии, по предварительной оценке, устойчивых к мучнистой росе. У четырех образцов из Эфиопии к-20087, к-20523, к-20524 и к-28126 впервые идентифицировали высокоэффективный аллель устойчивости ячменя к мучнистой росе mlo11(cnv2). В полевых условиях взрослые растения оказались устойчивыми, а в теплице поражались мучнистой росой умеренно (1-2 балла). Симптомы болезни оказались схожими с описанными для образца Eth295 – носителя вариантного аллеля mlo11(cnv2): единичные пустулы и отсутствие некротических пятен на листьях. С помощью ПЦР у всех 14 образцов были амплифицированы фрагменты MITE и участка прилегающего к Mlo 5' промоторной последовательности. Фрагменты были клонированы и секвенированы и только у образцов к-20087, к-20523, к-20524 и к-28126 в нуклеотидных последовательностях были обнаружены маркерные SNP для аллеля mlo11(cnv2): замены цитозина на тимин в позициях 262 транспозона и 452 в промоторной области. Образцы относятся к различным разновидностям и отличаются друг от друга по ряду других морфологических признаков, то есть не являются дублетами. Заключение. Генотипы, отобранные в ходе исследования, могут служить источниками аллеля mlo11(cnv2) при создании устойчивых к мучнистой росе сортов ячменя.</p></abstract><trans-abstract xml:lang="en"><p>Background. The search for barley (Hordeum vulgare L.) genotypes that carry effective genes for resistance to powdery mildew agent Blumeria graminis f. sp. hordei is a present-day issue for Russian plant breeding. The mlo11 allele that confers long-term protection of barley against the pathogen is rarely found among the varieties, approved for cultivation in the territory of Russia. There is no information on the occurrence among Russian varieties of another effective allele, mlo11 (cnv2), therefore, the search for its source is a current necessity. Materials and methods. Seven barley accessions from Ethiopia and 7 accessions from Japan have been tested for resistance to the northwestern population of the powdery mildew agent in the field and in laboratory conditions. To identify of the Mlo gene alleles, nucleotide sequences of the Stowaway-MITE (Miniature Inverted-repeat Transposable Elements) and the adjacent promoter fragments were determined. Results. Phytopathological tests in the field and greenhouse conditions, as well as molecular markers were used to study 14 barley accessions from Ethiopia and Japan. According to the preliminary tests, plants were resistant to powdery mildew. The highly effective allele of powdery mildew resistance mlo11 (cnv2) was for the first time identified in four barley accessions from Ethiopia, k-20087, k-20523, k-20524 and k-28126. Under field conditions, adult plants were resistant, and in the greenhouse they were moderately damaged by powdery mildew (1-2 points). The disease symptoms were similar to those described for the sample Eth295, a carrier of the mlo11(cnv2) allele variant: single pustules and the absence of necrotic spots on the leaves. The fragments of Stowaway-MITE and adjacent Mlo 5' promoter sequences were amplified in all 14 accessions. The amplicons were cloned and sequenced. The unique marker SNPs within the MITE and Mlo 5’ promoter sequences, i.e. the substitutions of cytosine by thymine in positions 262 and 452, were found only in k-20087, k-20523, k-20524 and k-28126. These accessions belong to different botanical varieties and differ from each other in a number of morphological features, i.e. they are not duplicates. Conclusions. The genotypes selected as a result of the study can serve as a source of the mlo11(cnv2) allele in breeding powdery mildew-resistant barley varieties.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ячмень</kwd><kwd>Blumeria graminis</kwd><kwd>устойчивость</kwd><kwd>молекулярные маркеры</kwd><kwd>мутантный аллель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>barley</kwd><kwd>Blumeria graminis</kwd><kwd>resistance</kwd><kwd>molecular markers</kwd><kwd>mutant allele.</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено при финансовой поддержке Российского Научного Фонда (проект № 21-76-00018, https://rscf.ru/project/21-76-00018/).</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The study was carried out with financial support from the Russian Science Foundation (Project #21-76-00018, https://rscf.ru/project/21-76-00018/).</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">Abdullaev R.A., Lebedeva T.V., Alpatyeva N.V., Yakovleva O.V., Kovaleva O.V, Radchenko E.E., Anisimova I.N., Batasheva B.A., Karabitsina Yu.I., Kuznetsova E.B. 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