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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">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/VJ15.015</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-354</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>ГЕНЕТИКА ЧЕЛОВЕКА И ПАЛЕОГЕНЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Plant breeding and biotechnology</subject></subj-group></article-categories><title-group><article-title>Mетаболомный подход к оценке сортовой специфичности семян Brassica napus L.</article-title><trans-title-group xml:lang="en"><trans-title>The metabolomic approach to the assessment of cultivar specificity of Brassica napus L. seeds</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смоликова</surname><given-names>Г. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Smolikova</surname><given-names>G. N.</given-names></name></name-alternatives><email xlink:type="simple">galina.smolikova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шаварда</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Shavarda</surname><given-names>A. L.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексейчук</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseichuk</surname><given-names>I. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чанцева</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chantseva</surname><given-names>V. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Медведев</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedev</surname><given-names>S. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный университет», Санкт-Петербург, Россия<country>Россия</country></aff><aff xml:lang="en">Saint-Petersburg State University, St.-Petersburg, Russia;<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Санкт-Петербургский государственный университет, Санкт-Петербург, Россия; &#13;
Ботанический институт им. В.Л. Комарова Российской академии наук, Санкт-Петербург, Россия<country>Россия</country></aff><aff xml:lang="en">Saint-Petersburg State University, St.-Petersburg, Russia;&#13;
V.L. Коmаrov Botanical Institute of the RAS, St.-Petersburg, Russia<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>03</day><month>07</month><year>2015</year></pub-date><volume>19</volume><issue>1</issue><fpage>121</fpage><lpage>127</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Смоликова Г.Н., Шаварда А.Л., Алексейчук И.В., Чанцева В.В., Медведев С.С., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Смоликова Г.Н., Шаварда А.Л., Алексейчук И.В., Чанцева В.В., Медведев С.С.</copyright-holder><copyright-holder xml:lang="en">Smolikova G.N., Shavarda A.L., Alekseichuk I.V., Chantseva V.V., Medvedev S.S.</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://vavilov.elpub.ru/jour/article/view/354">https://vavilov.elpub.ru/jour/article/view/354</self-uri><abstract><p>Современные молекулярно-биологические исследования характеризуются применением совокупности методологических платформ, позволяющих изучать организмы как на геномном и протеомном уровнях, так и на уровне метаболомов. Однако для обоснования возможности применения метаболомного анализа в селекции необходимо проведение исследований на широком спектре видов и сортов растений. В данной работе с использованием метода газовой хроматографии, сопряженной с масс-спектрометрией, проведена оценка содержания низкомолекулярных метаболитов в семенах разных сортов рапса, которые относились к одной репродукции.В каждом метаболическом профиле было аннотировано по 168 соединений, из которых 52 идентифицировано. Идентифицированные соединения включали аминокислоты, органические и жирные кислоты, токоферолы, фитостеролы. Обработка полученных данных осуществлялась методами мультивариантной статистики: методом главных компонент (МГК), методом дискриминантного анализа проекций на латентные структуры (ПЛС-ДА) и методом множественного регрессионного анализа проекций на латентные структуры. Созданные МГК и ПЛС-ДА модели демонстрировали достоверные различия между метаболомами исследованных сортов рапса. Наиболее значимый вклад в формирование моделей вносили аминокислоты и органические кислоты. Суммарный процент объясненной информации для МГК и ПЛС-ДА моделей составил в среднем 65 %. Достоверность ПЛС-ДА модели, согласно перекрестной проверке по методу «венецианские жалюзи», составила 91,67 %. Таким образом, показано, что метаболомный подход может служить эффективным инструментом для идентификации сортовой принадлежности семян. Необходимым условием при этом является создание постоянно обновляемой базы метаболомных профилей, характерных для конкретных сортов. Применение дискриминантного анализа проекций на латентные структуры позволит сравнивать метаболомы неизвестных образцов семян с имеющимися в базе данных метаболомными профилями и на этой основе классифицировать новые образцы семян.</p></abstract><trans-abstract xml:lang="en"><p>Recent biomolecular studies tend to involve combinations of different methods and approaches that allow analyzing organisms on the genomic and proteomic levels, as well as on the level of metabolomics. However, in order to justify the use of the metabolomics techniques in plant breeding, it is important to perform comprehensive analysis of a broad range of species and varieties. In this study, we evaluated the contents of low-molecular-weight substances in seeds of different rapeseed cultivars by the gas chromatography–mass spectrometry (GC-MS) technique. For every metabolomic profile, we estimated 168 target substances, and 52 of them were unambiguously identified. These compounds included amino acids, organic and fatty acids, tocopherols, and phytosterols. In order to keep the data assay within the context of multivariate statistics, we used principal component analysis (PCA), partial least square discriminant analysis (PLS-DA), and partial least square regression (PLS-R). Subsequent analysis revealed a significant difference between the metabolomic profiles of the investigated rapeseed cultivars, with the primary role of the amino acids and organic acids. Noticeably, the PLS-DA model showed 65% of the explained variance and, according to the Venetian blinds cross- validation test, 91.67 % of the accuracy. Thus, we demonstrate the effectiveness of the metabolomics approach to the varietal identification of seeds. This strategy can be further improved with a continuously updated database of the metabolomic profiles of different species and cultivars. Application of the PLS-DA method will allow comparison of the metabolites of unknown samples with the existing profiles and, subsequently, identification of new seed samples. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>Brassica napus L.</kwd><kwd>семена</kwd><kwd>газовая хроматография</kwd><kwd>масс-спектрометрия</kwd><kwd>метаболомика</kwd><kwd>метод главных компонент</kwd><kwd>дискриминантный анализ проекций на латентные структуры</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Brassica napus L.</kwd><kwd>seeds</kwd><kwd>gas chromatography</kwd><kwd>mass spectrometry</kwd><kwd>metabolomics</kwd><kwd>principal component analysis</kwd><kwd>projection to latent structures − discriminant analysis</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Афонников Д.А., Миронова В.В. Системная биология. 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