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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">Russian Journal of Genetics</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0016-6758</issn><issn publication-format="electronic">3034-5103</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">666945</article-id><article-id pub-id-type="doi">10.31857/S0016675824040056</article-id><article-id pub-id-type="edn">crfsxm</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ГЕНЕТИКА ЖИВОТНЫХ</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">Phylogeographic structure in the <italic>Alexandromys maximowiczii</italic> Schrenk, 1859 (Rodentia, Cricetidae): comparison of data on mtDNA control region variability and chromosome polymorphism</article-title><trans-title-group xml:lang="ru"><trans-title>Филогеографическая структура <italic>Alexandromys maximowiczii</italic> Schrenk, 1859 (Rodentia, Cricetidae): сопоставление данных изменчивости контрольного региона мтДНК и полиморфизма хромосом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sheremetyeva</surname><given-names>I. N.</given-names></name><name xml:lang="ru"><surname>Шереметьева</surname><given-names>И. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sheremet76@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kartavtseva</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Картавцева</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sheremet76@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pavlenko</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Павленко</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sheremet76@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gorobeiko</surname><given-names>U. V.</given-names></name><name xml:lang="ru"><surname>Горобейко</surname><given-names>У. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sheremet76@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bazhenov</surname><given-names>Yu. A.</given-names></name><name xml:lang="ru"><surname>Баженов</surname><given-names>Ю. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sheremet76@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Moroldoev</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Моролдоев</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sheremet76@yandex.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Voyta</surname><given-names>L. L.</given-names></name><name xml:lang="ru"><surname>Войта</surname><given-names>Л. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sheremet76@yandex.ru</email><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal Scientific Center of the East Asia Terrestrial Biodiversity in the Far East Branch of Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральный научный центр биоразнообразия наземной биоты Восточной Азии Дальневосточного отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Natural Resources, Ecology and Cryology in the Siberian Branch of Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт природных ресурсов, экологии и криологии Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Institute of Systematics and Ecology of Animals in the Siberian Branch of Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт систематики и экологии животных Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Zoological Institute of Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Зоологический институт Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-11" publication-format="electronic"><day>11</day><month>04</month><year>2024</year></pub-date><volume>60</volume><issue>4</issue><fpage>58</fpage><lpage>68</lpage><history><date date-type="received" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</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://transsyst.ru/0016-6758/article/view/666945">https://transsyst.ru/0016-6758/article/view/666945</self-uri><abstract xml:lang="en"><p>Based on the study of the mtDNA control region variability, a high level of genetic diversity and described genetic structure for the species as a whole are revealed for <italic>Alexandromys maximowiczii</italic>. Three phylogenetic groups “east”, “west” and “south” are identified, and within the “east” group three subclades “Chit”, “Amur” and “Khab” are distinguished. All phylogenetic groups and subclades have a mainly allopatric geographical distribution across the range. Nevertheless, in the vicinity of the village of Savvo-Borzya (Zabaykalsky Krai) one “hybrid” sample is found, individuals in which have different variants of the mt genotype: one individual has a “west” variant and the second has an “east”/“Amur” one. The revealed phylogenetic structure generally correlates with the previously described chromosomal forms, but does not correspond to the subspecific forms. The complex intraspecific subdivision of <italic>Alexandromys maximowiczii</italic>, discovered at different organization levels (molecular genetics and chromosomal), reflects not only the complex geography of the study area, but also the history of dynamic changes in the natural environment.</p></abstract><trans-abstract xml:lang="ru"><p>В результате исследования генетической структуры полевки Максимовича <italic>Alexandromys maximowiczii</italic> по данным изменчивости контрольного региона мтДНК обнаружен высокий уровень генетической изменчивости для вида в целом. Выявлено три филогенетические группы “east”, “west” и “south”, а в пределах группы “east” три субклады “Chit”, “Amur” и “Khab”. Все филогенетические группы и субклады имеют в основном аллопатрическое географическое распределение по ареалу, но обнаружена одна “гибридная” выборка в окрестностях поселка Савво-Борзя (Забайкальский край), особи в которой имеют разные варианты мт-генотипа: одна особь имеет вариант “west”, а вторая – “east”/“Amur”. Выявленная филогеографическая структура в целом коррелирует с картиной дифференциации по хромосомным формам, но не согласуется с принятой ранее подвидовой системой. Сложная внутривидовая подразделенность полевки Максимовича, обнаруженная на разных уровнях организации (молекулярно-генетическом и хромосомном) отражает не только сложную географию района исследования, но и историю динамического изменения природной среды.</p></trans-abstract><kwd-group xml:lang="en"><kwd>phylogeography</kwd><kwd>mtDNA control region</kwd><kwd>Maximowicz’s vole</kwd><kwd>Alexandromys maximowiczii</kwd><kwd>variability</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>филогеография</kwd><kwd>контрольный регион мтДНК</kwd><kwd>полевка Максимовича</kwd><kwd>Alexandromys maximowiczii</kwd><kwd>изменчивость</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство РФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>№121031500274-4</award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство РФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>№ 0309-2021-0001</award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">РФФИ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Foundation for Basic Research</institution></institution-wrap></funding-source><award-id>15-04-03871</award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">РФФИ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Foundation for Basic Research</institution></institution-wrap></funding-source><award-id>12-04-10047-к</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Pavlinov I.Ya., Lissovsky A.A. 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