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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">microbe</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы особо опасных инфекций</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Particularly Dangerous Infections</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0370-1069</issn><issn pub-type="epub">2658-719X</issn><publisher><publisher-name>Russian Research Anti-Plague Institute “Microbe”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21055/0370-1069-2025-4-82-87</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-2253</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Филогения и биологические свойства штаммов Brucella abortus, выделенных на территории Приволжского и Центрального федеральных округов в 2017–2024 гг.</article-title><trans-title-group xml:lang="en"><trans-title>Phylogeny and Biological Properties of Brucella abortus Strains Isolated in the Volga and Central Federal Districts in 2017–2024</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9366-5647</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковалев</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalev</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ковалев Дмитрий Анатольевич, </p><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>Dmitry A. Kovalev, </p><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">kovalev_da.stv@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/0000-0001-6458-6790</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Писаренко</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pisarenko</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">stavnipchi@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/0000-0001-9513-0761</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">stavnipchi@mail.ru</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>Коломыцева</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolomytseva</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">stavnipchi@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/0000-0003-0422-6755</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пономаренко</surname><given-names>Д. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Ponomarenko</surname><given-names>D. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">stavnipchi@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/0000-0001-9152-4026</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шапаков</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shapakov</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">stavnipchi@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/0000-0002-7459-7204</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хачатурова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khachaturova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">stavnipchi@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/0000-0002-8974-1053</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафонова</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Safonova</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>355035, Ставрополь, ул. Советская, 13–15</p></bio><bio xml:lang="en"><p>13–15, Sovetskaya St., Stavropol, 355035</p></bio><email xlink:type="simple">stavnipchi@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФКУЗ «Ставропольский научно-исследовательский противочумный институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Stavropol Research Anti-Plague Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>14</day><month>01</month><year>2026</year></pub-date><volume>0</volume><issue>4</issue><fpage>82</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ковалев Д.А., Писаренко С.В., Кузнецова И.В., Коломыцева В.И., Пономаренко Д.Г., Шапаков Н.А., Хачатурова А.А., Сафонова Н.С., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ковалев Д.А., Писаренко С.В., Кузнецова И.В., Коломыцева В.И., Пономаренко Д.Г., Шапаков Н.А., Хачатурова А.А., Сафонова Н.С.</copyright-holder><copyright-holder xml:lang="en">Kovalev D.A., Pisarenko S.V., Kuznetsova I.V., Kolomytseva V.I., Ponomarenko D.G., Shapakov N.A., Khachaturova A.A., Safonova N.S.</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://journal.microbe.ru/jour/article/view/2253">https://journal.microbe.ru/jour/article/view/2253</self-uri><abstract><p>Цель работы – изучение биологических, молекулярно-генетических свойств и определение филогенетической принадлежности штаммов Brucella abortus, выделенных на территории Приволжского (ПФО) и Центрального (ЦФО) федеральных округов.</p><sec><title>Материалы и методы</title><p>Материалы и методы. Проведено исследование 21 штамма B. abortus, выделенных на территории ПФО и ЦФО в 2017–2024 гг. Секвенирование геномов выполняли на платформе DNBSEQ G50RS (MGI, Китай) с использованием набора реагентов MGIEasy FAST FS DNA Library Prep Set V2.1 (MGI, Китай) по стандартному протоколу. Филогенетическую реконструкцию выполняли по методу максимального правдоподобия в программе RealPhy.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. Все штаммы имели характерные для B. abortus тинкториальные, морфологические и культуральные свойства. Топология филогенетического дерева свидетельствует об общем происхождении штаммов, выделенных на территории ПФО и ЦФО в 2017–2024 гг. Установлено, что исследуемые изоляты генетически близки к штаммам B. abortus, выделенным из биоматериала от больных бруцеллезом животных и пищевых продуктов животного происхождения из Липецкой области (2017 г.), Самарской области (2016 г.), Ставропольского края (2015 г.), Республики Дагестан (2015 г.), Республики Калмыкия (2012 г.). Общая кластеризация штаммов из ПФО и ЦФО и из разных субъектов Северо-Кавказского и Южного федеральных округов указывает на наличие ретроспективной эпидемиологической связи очагов бруцеллеза с длительно неблагополучной территорией юга европейской части России, в том числе Северного Кавказа.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the work was to study biological, molecular-genetic properties and to determin the phylogenetic affiliation of Brucella abortus strains isolated in the Volga and Central Federal Districts.</p><sec><title>Materials and methods</title><p>Materials and methods. A research of 21 strains of B. abortus isolated in the Volga Federal District and the Central Federal District in 2017–2024 was conducted. Genome sequencing was performed on the DNBSEQ G50RS platform (MGI, China) using the MGI Easy FAST FS DNA Library Prep Set V2.1 reagent kit (MGI, China) according to a standard protocol. Phylogenetic reconstruction was performed using the maximum likelihood method in the “RealPhy” software.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. All strains have tinctorial, morphological, and cultural properties characteristic of typical B. abortus strains. The topology of the phylogenetic tree indicates the common origin of the strains isolated in the Volga Federal District and the Central Federal District in 2017–2024. It has been found that the studied isolates are genetically close to the B. abortus strains isolated from biomaterial from animals with brucellosis and food products of animal origin from the Lipetsk Region (2017), Samara Region (2016), Stavropol Territory (2015), Republic of Dagestan (2015), Republic of Kalmykia (2012). The general clustering of strains from the Volga Federal District and the Central Federal District and from different entities of the North Caucasus Federal District and the Southern Federal District indicates the presence of a retrospective epidemiological link between brucellosis foci and the affected over the long period territory of the southern European part of Russia, including the North Caucasus.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Brucella abortus</kwd><kwd>полногеномное секвенирование</kwd><kwd>филогенетический анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Brucella abortus</kwd><kwd>genome-wide sequencing</kwd><kwd>phylogenetic 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">Corbel M.J. Brucellosis in humans and animals. World Health Organization; 2006.</mixed-citation><mixed-citation xml:lang="en">Corbel M.J. Brucellosis in humans and animals. World Health Organization; 2006.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Hayoun M.A., Muco E., Shorman M. Brucellosis. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan. PMID 28722861.</mixed-citation><mixed-citation xml:lang="en">Hayoun M.A., Muco E., Shorman M. Brucellosis. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan. PMID 28722861.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Пономаренко Д.Г., Матвиенко А.Д., Хачатурова А.А., Жаринова И.В., Скударева О.Н., Транквилевский Д.В., Логвиненко О.В., Ракитина Е.Л., Костюченко М.В., Кондратьева Ю.В., Малецкая О.В., Куличенко А.Н. Анализ ситуации по бруцеллезу в мире и Российской Федерации. Проблемы особо опасных инфекций. 2024; (2):36–50. DOI: 10.21055/0370-1069-2024-2-36-50.</mixed-citation><mixed-citation xml:lang="en">Ponomarenko D.G., Matvienko A.D., Khachaturova A.A., Zharinova I.V., Skudareva O.N., Trankvilevsky D.V., Logvinenko O.V., Rakitina E.L., Kostyuchenko M.V., Kondrat’eva Yu.V., Maletskaya O.V., Kulichenko A.N. [Analysis of the situation on brucellosis around the world and in the Russian Federation]. Problemy Osobo Opasnykh Infektsii [Problems of Particularly Dangerous Infections]. 2024; (2):36–50. DOI: 10.21055/0370-1069-2024-2-36-50.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Andrews S. FastQC: A quality control tool for high throughput sequence data. [Электронный ресурс]. URL: https://github.com/s-andrews/FastQC (дата обращения 07.07.2025).</mixed-citation><mixed-citation xml:lang="en">Andrews S. FastQC: A quality control tool for high throughput sequence data. (Cited 07 July 2025). [Internet]. Available from: https://github.com/s-andrews/FastQC.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Bolger A.M., Lohse M., Usadel B. Trimmomatic: a flexible trimmer for Illumina sequence data. Bioinformatics. 2014. 30(15):2114–20. DOI: 10.1093/bioinformatics/btu170.</mixed-citation><mixed-citation xml:lang="en">Bolger A.M., Lohse M., Usadel B. Trimmomatic: a fle¬xible trimmer for Illumina sequence data. Bioinformatics. 2014. 30(15):2114–20. DOI: 10.1093/bioinformatics/btu170.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Prjibelski A., Antipov D., Meleshko D., Lapidus A., Korobeynikov A. Using SPAdes de novo Assembler. Curr. Protoc. Bioinformatics. 2020; 70(1):e102. DOI: 10.1002/cpbi.102.</mixed-citation><mixed-citation xml:lang="en">Prjibelski A., Antipov D., Meleshko D., Lapidus A., Korobeynikov A. Using SPAdes de novo Assembler. Curr. Protoc. Bioinformatics. 2020; 70(1):e102. DOI: 10.1002/cpbi.102.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Mikheenko A., Prjibelski A., Saveliev V., Antipov D., Gurevich A. Versatile genome assembly evaluation with QUAST- LG. Bioinformatics. 2018; 34(13):i142–i150. DOI: 10.1093/bioinformatics/bty266.</mixed-citation><mixed-citation xml:lang="en">Mikheenko A., Prjibelski A., Saveliev V., Antipov D., Gurevich A. Versatile genome assembly evaluation with QUAST-LG. Bioinformatics. 2018; 34(13):i142–i150. DOI: 10.1093/bioinformatics/bty266.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Tanizawa Y., Fujisawa T., Nakamura Y. DFAST: a flexible prokaryotic genome annotation pipeline for faster genome publication. Bioinformatics. 2018; 34(6):1037–9. DOI: 10.1093/bioinformatics/btx713.</mixed-citation><mixed-citation xml:lang="en">Tanizawa Y., Fujisawa T., Nakamura Y. DFAST: a fle¬xible prokaryotic genome annotation pipeline for faster genome publication. Bioinformatics. 2018; 34(6):1037–9. DOI: 10.1093/bioinformatics/btx713.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Whatmore A.M., Koylass M.S., Muchowski J., Edwards-Smallbone J., Gopaul K.K., Perrett L.L. Extended multilocus sequence analysis to describe the global population structure of the genus Brucella: phylogeography and relationship to biovars. Front. Microbiol. 2016; 7:2049. DOI: 10.3389/fmicb.2016.02049.</mixed-citation><mixed-citation xml:lang="en">Whatmore A.M., Koylass M.S., Muchowski J., Edwards-Smallbone J., Gopaul K.K., Perrett L.L. Extended multilocus sequence analysis to describe the global population structure of the genus Brucella: phylogeography and relationship to biovars. Front. Microbiol. 2016; 7:2049. DOI: 10.3389/fmicb.2016.02049.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Bertels F., Silander O.K., Pachkov M., Rainey P.B., van Nimwegen E. Automated reconstruction of whole-genome phylogenies from short-sequence reads. Mol. Biol. Evol. 2014; 31(5):1077–88. DOI: 10.1093/molbev/msu088.</mixed-citation><mixed-citation xml:lang="en">Bertels F., Silander O.K., Pachkov M., Rainey P.B., van Nimwegen E. Automated reconstruction of whole-genome phylogenies from short-sequence reads. Mol. Biol. Evol. 2014; 31(5):1077–88. DOI: 10.1093/molbev/msu088.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Rambaut A. FigTree v1.4.2. A Graphical Viewer of Phylogenetic Trees. [Электронный ресурс]. URL: http://tree.bio.ed.ac.uk/software/figtree/ (дата обращения 07.07.2025).</mixed-citation><mixed-citation xml:lang="en">Rambaut A. FigTree v1.4.2. A Graphical Viewer of Phylogenetic Trees. (Cited 07 July 20225). [Internet]. Available from: http://tree.bio.ed.ac.uk/software/figtree.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
