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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">ivm</journal-id><journal-title-group><journal-title xml:lang="ru">Международный вестник ветеринарии</journal-title><trans-title-group xml:lang="en"><trans-title>International Journal of Veterinary Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-2419</issn><publisher><publisher-name>SpbGUVM Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52419/issn2072-2419.2024.4.518</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1562</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>АКУШЕРСТВО, ГИНЕКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OBSTETRICS, GYNECOLOGY</subject></subj-group></article-categories><title-group><article-title>Популяционно-генетическая характеристика крупного рогатого скота по гену MC4R (рецептор Меланокортина 4)</article-title><trans-title-group xml:lang="en"><trans-title>POPULATION-GENETIC CHARACTERISTICS OF CATTLE BY THE MC4R (MELANOCORTIN 4 RECEPTOR) GENE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1184-3188</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафина</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Safina</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сафина Н.Ю. – канд. биол. наук, ст. науч. сотр. </p></bio><bio xml:lang="en"><p>Safina N.Yu. – Candidate of Biological Sciences, Senior Researcher</p></bio><email xlink:type="simple">natysafina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8086-1788</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крупин</surname><given-names>Е. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Krupin</surname><given-names>E. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Крупин Е.О. – д-р ветеринар. наук, вед. науч. сотр. </p></bio><bio xml:lang="en"><p>Krupin E.O. – Doctor of Veterinarian Sciences, Leading Researcher</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Татарский научно-исследовательский институт сельского хозяйства ФИЦ КазНЦ РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tatar Scientific Research Institute of Agriculture “Kazan Scientific Center of Russia Academy of Sciences”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>20</day><month>01</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>518</fpage><lpage>527</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сафина Н.Ю., Крупин Е.О., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Сафина Н.Ю., Крупин Е.О.</copyright-holder><copyright-holder xml:lang="en">Safina N.Y., Krupin E.O.</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://vetjournal.spbguvm.ru/jour/article/view/1562">https://vetjournal.spbguvm.ru/jour/article/view/1562</self-uri><abstract><p>Целью работы являлось дать популяционно-генетическую характеристику крупного рогатого скота татарстанского типа холмогорской породы Республики Татарстан по гену MC4R (рецептор меланокортина 4). В результате проведенного генотипирования методом ПЦРПДРФ по локусу гена MC4R - HpySE526I установлено 2 аллеля и 3 генотипа. Частота встречаемости аллелей: С – 0,434 и G – 0,566; генотипов CC – 20,9; CG – 45,0 и GG – 34.1%. Тест хи-квадрат (χ²) показал, что изучаемая популяция находится в генетическом равновесии. Отрицательный коэффициент Селендера (D) указывает на аутбридинг у популяции. Мониторинг работ по изучению полиморфизма гена 1069C˃G (Leu286Val) указывает на значительную вариабельность соотношения полиморфных форм гена MC4R в различных популяция крупного рогатого скота в зависимости от его географической и породной принадлежности. В среднем по всем рассматриваемым породам крупного рогатого скота мировых популяций соотношение аллелей гена MC4R – 0,537 и 0,463 для аллеля C и G соответственно. Соотношение генотипов CC, CG и GG гена MC4R по всем анализируемым популяциям крупного рогатого скота в среднем составило 32,5; 42,3 и 25,2 %. Анализ, проведенный с использованием данных зарубежных ученых, и результатов, полученных в нашем исследовании, характеризует мировые популяции крупного рогатого скота как генетически биоразнообразные, обладающие генетическим полиморфизмом по гену MC4R с высокой степенью гетерозиготности. Исследование выполнено в рамках государственного задания, регистрационный номер 122011800138-7.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the work was to provide a population genetic characteristic of the Kholmogorsky breed of the Tatarstan type of the Republic of Tatarstan for the MC4R gene (melanocortin 4 receptor). As a result of genotyping by the PCR-RFLP method for the MC4R - HpySE526I gene locus, 2 alleles and 3 genotypes were identified. The frequency of alleles: C - 0.434 and G - 0.566; and frequency of genotypes: CC - 20.9, CG - 45.0 and GG - 34.1%. The chi-square test (χ²) showed that the studied population the Hardy–Weinberg genetic equilibrium is not disturbed. A negative Selender coefficient (D) indicates outbreeding in the population. Monitoring of works on studying the polymorphism of the gene 1069C˃G (Leu286Val) shows a significant variability in the ratio of polymorphic forms of the MC4R gene in different cattle populations depending on their geographic and breed affiliation. On average, for all the considered cattle breeds of the world populations, the frequency of alleles of the MC4R gene is 0.537 and 0.463 for the allele C and G, respectively. The ratio of the CC, CG and GG genotypes of the MC4R gene for all analyzed cattle populations averaged 32.5, 42.3 and 25.2%. The analysis carried out using the data of foreign scientists and the results obtained in our study characterizes the world populations of cattle as genetically biodiverse, possessing genetic polymorphism for the MC4R gene with a high degree of heterozygosity. This research was supported by FASO Russia project, registration number 122011800138-7.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ген</kwd><kwd>аллель</kwd><kwd>гетерозиготность</kwd><kwd>биоразнообразие</kwd><kwd>полиморфизм</kwd><kwd>MC4R</kwd><kwd>рецептор меланокортина 4</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gene</kwd><kwd>allele</kwd><kwd>heterozygosity</kwd><kwd>biodiversity</kwd><kwd>polymorphism</kwd><kwd>MC4R</kwd><kwd>melanocortin 4 receptor</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена в рамках государственного задания: Эколого-генетические подходы к созданию и сохранению ресурсов растений и животных, расширению их адаптивного потенциала и биоразнообразия, разработка сберегающих агротехнологий с целью повышения устойчивости производства высококачественной продукции, достижения безопасности для здоровья человека и окружающей среды. Номер регистрации: 122011800138-7.</funding-statement><funding-statement xml:lang="en">This research was supported by the Ecological and genetic approaches to the creation and conservation of plant and animal resources, the expansion of their adaptive potential and biodiversity, the development of conservation agrotechnologies to increase the sustainability of high-quality products, achieve safety for human health and the environment. FASO Russia project. Registration number: 122011800138-7.</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">Safina N. Dairy productivity of Holstein cattle with different genotypes of the paraoxonase-1 (PON1) gene / N. Safina, Sh. Shakirov, E. Gaynutdinova et al. // E3S Web of Conferences. – 2021. Vol. 282. – P. 02007. 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