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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2023-372-7-22-26</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-2694</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>ЗООТЕХНИЯ И ВЕТЕРИНАРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ZOOTECHNICS AND VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>Диагностически значимые однонуклеотидные полиморфизмы в локусе env-гена для SNP-генотипирования Bovine leukemia virus</article-title><trans-title-group xml:lang="en"><trans-title>Diagnostically significant single nucleotide polymorphisms in the env-gene locus for SNP-genotyping of Bovine leukemia virus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0914-0053</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вафин</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Vafin</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рамиль Ришадович Вафин, доктор биологических наук, профессор,</p><p>Рязанский пр-т, 24, Москва, 109428</p></bio><bio xml:lang="en"><p>Ramil Rishadovich Vafin, Doctor of biological sciences, professor,</p><p>24 Ryazan Ave., Moscow, 109428</p></bio><email xlink:type="simple">vafin-ramil@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/0000-0001-7053-6925</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гильманов</surname><given-names>Х. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Gilmanov</surname><given-names>Kh. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хамид Халимович Гильманов, кандидат биологических наук,</p><p>Рязанский пр-т, 24, Москва, 109428</p></bio><bio xml:lang="en"><p>Khamid Khalimovich Gilmanov, Candidate of biological sciences,</p><p>24 Ryazan Ave., Moscow, 109428</p></bio><email xlink:type="simple">Gilmanov.xx@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/0000-0001-7360-927X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шастин</surname><given-names>П. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shastin</surname><given-names>P. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павел Николаевич Шастин, кандидат ветеринарных наук,</p><p>Рязанский пр-т, 24, Москва, 109428</p></bio><bio xml:lang="en"><p>Pavel Nikolaevich Shastin, Candidate of veterinary sciences,</p><p>24 Ryazan Ave., Moscow, 109428</p></bio><email xlink:type="simple">shastin.pasha@yandex.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>Гулюкин</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gulyukin</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Алексеевич Гулюкин, аспирант, </p><p>Рязанский пр-т, 24, Москва, 109428</p></bio><bio xml:lang="en"><p>Evgeny Alekseevich Gulyukin, Postgraduate,</p><p>24 Ryazan Ave., Moscow, 109428</p></bio><email xlink:type="simple">gulyukin_viev@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/0000-0002-9731-5417</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорьев</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoriev</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артем Геннадьевич Григорьев, младший научный сотрудник,</p><p>Рязанский пр-т, 24, Москва, 109428</p></bio><bio xml:lang="en"><p>Artem Gennadievich Grigoriev, Junior researcher,</p><p>24 Ryazan Ave., Moscow, 109428</p></bio><email xlink:type="simple">griartis.viev@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный научный центр — Всероссийский научно-исследовательский институт экспериментальной ветеринарии им. К.И. Скрябина и Я.Р. Коваленко РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Center — All-Russian Research Institute of Experemental Veterinary Medicine named after K.I. Scryabyn and Y.R. Kovalenko of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>7</issue><fpage>22</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вафин Р.Р., Гильманов Х.Х., Шастин П.Н., Гулюкин Е.А., Григорьев А.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Вафин Р.Р., Гильманов Х.Х., Шастин П.Н., Гулюкин Е.А., Григорьев А.Г.</copyright-holder><copyright-holder xml:lang="en">Vafin R.R., Gilmanov K.K., Shastin P.N., Gulyukin E.A., Grigoriev A.G.</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://www.vetpress.ru/jour/article/view/2694">https://www.vetpress.ru/jour/article/view/2694</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Этиологическим агентом развития персистентного лимфоцитоза и лимфосаркомы у крупного рогатого скота является Bovine leukemia virus. Филогенетический анализ секвенированных нуклеотидных последовательностей локуса env-гена BLV основной, но не единственный подход к генотипической классификации возбудителя.</p></sec><sec><title>Методы</title><p>Методы. Цель исследования — выявление однонуклеотидных полиморфизмов в локусе env-гена Bovine leukemia virus, рассматриваемых в качестве диагностически значимых для SNP-генотипирования BLV на основе анализа данных прямого секвенирования ПЦР-продукта.</p></sec><sec><title>Результаты</title><p>Результаты. Выравниванием нуклеотидных последовательностей локуса env-гена 101 типового изолята BLV известных генотипов Bovine leukemia virus выявлено 155 однонуклеотидных полиморфизмов, из которых 35 SNP рассматривались в качестве диагностически значимых. При этом для SNP-генотипирования BLV достаточен анализ по 22 охарактеризованным однонуклеотидным полиморфизмам, 14 из которых являются генотип-специфичными по отношению к 9 генотипам изучаемого вирусного патогена (C232G — для 3-го, G84A — 4-го, A117G, T326C и C412T — 5-го, C394T — 8-го, C40G — 9-го, C132T — 10-го, T113A и T256С — 11-го, T49С и G140A — 12-го, C83A и T304С — для 13-го генотипа), тем самым обеспечивая их идентификацию. Другие 8 охарактеризованных полиморфных позиций не являются генотип-специфичными, но интерпретация результатов их детекции имеет идентификационную ценность в отношении оставшихся 4 генотипов BLV: 1-го (G205G и A337A), 2-го (T220С и A334G), 6-го (A127R, C132C, T153C и C341С) и 7-го (T220C и A334A) соответственно.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. The etiological agent in the development of persistent lymphocytosis and lymphosarcoma in cattle is Bovine leukemia virus. Phylogenetic analysis of sequenced nucleotide sequences of the BLV env-gene locus is the main, but not the only, approach to pathogen genotypic classification.</p></sec><sec><title>Metods</title><p>Metods. The aim of the study was to identify single-nucleotide polymorphisms in the locus of the Bovine leukemia virus env-gene, considered as diagnostically significant for SNP genotyping of BLV based on the analysis of direct sequencing data of the PCR-product.</p></sec><sec><title>Results</title><p>Results. Alignment of the nucleotide sequences of the env-gene locus of 101 BLV type isolates of known Bovine leukemia virus genotypes revealed 155 single nucleotide polymorphisms, of which 35 SNP were considered diagnostically significant. At the same time, for BLV SNP-genotyping, an analysis of 22 characterized single nucleotide polymorphisms is sufficient, 14 of which are genotype-specific in relation to nine genotypes of the studied viral pathogen (C232G for the 3rd, G84A for the 4th, A117G, T326C and C412T — 5th, C394T — 8th, C40G — 9th, C132T — 10th, T113A and T256C — the 11th, T49C and G140A — the 12th, C83A and T304C — the 13th genotypes, thereby ensuring their identification. The other 8 characterized polymorphic positions are not genotype-specific, but the interpretation of the results of their detection has identification value in relation to the remaining 4 BLV genotypes: 1st (G205G and A337A), 2nd (T220C and A334G), 6th (A127R, C132C, T153C and C341C) and 7th (T220C and A334A) respectively.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>BLV</kwd><kwd>изолят</kwd><kwd>env</kwd><kwd>ген</kwd><kwd>генотип</kwd><kwd>ПЦР</kwd><kwd>секвенирование</kwd><kwd>выравнивание</kwd><kwd>SNP</kwd><kwd>генотипирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>BLV</kwd><kwd>isolate</kwd><kwd>env</kwd><kwd>gene</kwd><kwd>genotype</kwd><kwd>PCR</kwd><kwd>sequencing</kwd><kwd>alignment</kwd><kwd>SNP</kwd><kwd>genotyping</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Российского научного фонда № 22-76-10011 https://rscf.ru/project/22-76-10011.</funding-statement><funding-statement xml:lang="en">This research was funded by Russian Science Foundation No. 22-76-10011 https://rscf.ru/project/22-76-10011.</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">Донник И.М., Гулюкин М.И., Бусол В.А., Коваленко Л.В., Коваленко А.М. 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