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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Doklady Biological Sciences</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Biological Sciences</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Науки о жизни</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-7389</issn><issn publication-format="electronic">3034-5057</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">693507</article-id><article-id pub-id-type="doi">10.31857/S2686738925040133</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Expression Level of Carotenoid Biosynthesis Genes in Leaves Is Associated with Cold Tolerance of Zea mays L. Plants</article-title><trans-title-group xml:lang="ru"><trans-title>Уровень экспрессии генов биосинтеза каротиноидов в листьях связан с холодостойкостью растений <sup>Zea mays</sup> <sup>L.</sup></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Arkhestova</surname><given-names>D. Kh.</given-names></name><name xml:lang="ru"><surname>Архестова</surname><given-names>Д. Х.</given-names></name></name-alternatives><email>shchennikova@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kochieva</surname><given-names>E. Z.</given-names></name><name xml:lang="ru"><surname>Кочиева</surname><given-names>Е. З.</given-names></name></name-alternatives><email>shchennikova@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shchennikova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Щенникова</surname><given-names>А. В.</given-names></name></name-alternatives><email>shchennikova@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Bioengineering, Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральное государственное учреждение “Федеральный исследовательский центр “Фундаментальные основы биотехнологии” Российской академии наук”</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М. В. Ломоносова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2025</year></pub-date><volume>523</volume><issue>1</issue><issue-title xml:lang="en">VOL 523, NO (2025)</issue-title><issue-title xml:lang="ru">ТОМ 523, № (2025)</issue-title><fpage>457</fpage><lpage>461</lpage><history><date date-type="received" iso-8601-date="2025-10-16"><day>16</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-7389/article/view/693507">https://journals.eco-vector.com/2686-7389/article/view/693507</self-uri><abstract xml:lang="en"><p>The expression profile of key carotenoid biosynthesis genes (ZmPSY1, ZmPSY2, ZmLcyE) was determined in the dynamics of cold stress and post-stress recovery in the leaves of Zea mays L. plants of four cold-resistant (breeders' data) inbred lines: L-5580-1, L-6097-1, L-5254-3 and L-5272-6. It has been shown that under normal growing conditions the expression level of all three genes in the L-5580-1 line is significantly higher compared to other lines. It was revealed that low-temperature exposure affects the trends of gene expression fluctuations in a similar way between the lines. It was determined that in the dynamics of stress, the leaves of L-5580-1 plants are characterized by coordination of the co-expression pattern of the ZmPSY1 and ZmPSY2 genes with changes in the carotenoid content.</p></abstract><trans-abstract xml:lang="ru"><p>В динамике холодового стресса и послестрессового восстановления определен профиль экспрессии ключевых генов биосинтеза каротиноидов (ZmPSY1, ZmPSY2, ZmLcyE) в листьях растений кукурузы Zea mays L. четырех холодостойких (согласно данным селекционеров) инбредных линий (Л-5580-1, Л-6097-1, Л-5254-3 и Л-5272-6). Показано, что при нормальных условиях выращивания уровень экспрессии всех трех генов у линии Л-5580-1 существенно выше в сравнении с остальными линиями. Выявлено, что низкотемпературное воздействие сходным между линиями образом влияет на тенденции колебаний экспрессии генов. Определено, что в динамике холодового стресса для листьев растений Л-5580-1 характерно согласование паттерна коэкспрессии генов ZmPSY1 и ZmPSY2 с изменениями в содержании каротиноидов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Zea mays L.</kwd><kwd>cold stress</kwd><kwd>carotenoid biosynthesis</kwd><kwd>phytoene synthase</kwd><kwd>lycopene-ɛ-cyclase</kwd><kwd>gene expression</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Zea mays L.</kwd><kwd>холодовой стресс</kwd><kwd>биосинтез каротиноидов</kwd><kwd>фитоинсинтаза</kwd><kwd>ликопин-ɛ-циклаза</kwd><kwd>экспрессия генов</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке подпрограммы ФНТП “Развитие селекции и семеноводства кукурузы” (НИОКТР № 24102900043-6).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Waadt R., Seller C. A., Hsu P. K., et al. // Nat. Rev. Mol. Cell Biol. 2022. 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