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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Bulletin of KSAU</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Bulletin of KSAU</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Вестник КрасГАУ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1819-4036</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">106735</article-id>
   <article-id pub-id-type="doi">10.36718/1819-4036-2026-5-115-123</article-id>
   <article-id pub-id-type="edn">zuayac</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Зоотехния и ветеринария</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Animal breeding and veterinary surgery</subject>
    </subj-group>
    <subj-group>
     <subject>Зоотехния и ветеринария</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">POLYMORPHISM OF THE EXTENSION AND AGOUTI LOCI IN NOVO-ALTAI HORSES</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ПОЛИМОРФИЗМ ЛОКУСОВ EXTENSION И AGOUTI У НОВОАЛТАЙСКИХ ЛОШАДЕЙ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7129-3133</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Калинкова</surname>
       <given-names>Лилия Владимировна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kalinkova</surname>
       <given-names>Liliya Vladimirovna</given-names>
      </name>
     </name-alternatives>
     <email>genlab.horses.ru@gmail.com</email>
     <bio xml:lang="ru">
      <p>кандидат сельскохозяйственных наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of agricultural sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Дубровин</surname>
       <given-names>Александр Витальевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Dubrovin</surname>
       <given-names>Alexander Vital'evich</given-names>
      </name>
     </name-alternatives>
     <email>novoaltai2000@yandex.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Федеральное государственное бюджетное научное учреждение «Всероссийский научно-исследовательский институт коневодства имени академика В.В. Калашникова»</institution>
     <city>Рязань</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">The All-Russian Research Institute for Horse Breeding named after Academy Member V.V. Kalashnikov</institution>
     <city>Ryazan</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Федеральное государственное бюджетное научное учреждение «Всероссийский научно-исследовательский институт коневодства имени академика В.В. Калашникова»</institution>
     <city>Рязань</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">The All-Russian Research Institute for Horse Breeding named after Academy Member V.V. Kalashnikov</institution>
     <city>Ryazan</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2026-07-09T07:12:07+03:00">
    <day>09</day>
    <month>07</month>
    <year>2026</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2026-07-09T07:12:07+03:00">
    <day>09</day>
    <month>07</month>
    <year>2026</year>
   </pub-date>
   <issue>5</issue>
   <fpage>115</fpage>
   <lpage>123</lpage>
   <history>
    <date date-type="received" iso-8601-date="2025-11-17T00:00:00+03:00">
     <day>17</day>
     <month>11</month>
     <year>2025</year>
    </date>
   </history>
   <self-uri xlink:href="https://vestnik.kgau.ru/en/nauka/article/106735/view">https://vestnik.kgau.ru/en/nauka/article/106735/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель исследования – определение генетической структуры новоалтайской породы по локусам Extension и Agouti, контролирующим пигментацию кожи и волос. Новоалтайская лошадь – порода продуктивного направления использования, разводимая табунным методом. На адаптивные качества табунных лошадей влияют многочисленные генетические факторы, в т. ч. гены, регулирующие пигментацию. Образцы волос с волосяными луковицами были собраны от 80 новоалтайских лошадей, разводимых в племенных хозяйствах Республики Алтай и Алтайского края. Образцы были генотипированы по локусам Extension и Agouti с использованием технологии PCR-RFLP. Статистическая обработка результатов проводилась с определением частоты встречаемости аллелей, показателей наблюдаемой гетерозиготности исследованных локусов и частоты встречаемости генотипов в популяции. Частота встречаемости в локусе Extension доминантного аллеля «E» и рецессивного аллеля «e» составила 0,3875 и 0,6125 соответственно. В локусе Agouti частота встречаемости доминантного аллеля «A» равнялась 0,4875, а рецессивного аллеля «a» – 0,5125. Показатели наблюдаемой гетерозиготности составили 0,475 в локусе Extension и 0,500 в локусе Agouti. С учетом результатов тестирования по 2 локусам в исследованной группе животных было идентифицировано 9 различных вариантов генотипа, частота встречаемости которых варьировала от 0,2750 (генотип «E/e, А/а») до 0,0375 (генотип «E/E, а/а»), что свидетельствует о высоком уровне полиморфизма в популяции. Наиболее популярной, основной в новоалтайской породе мастью была гнедая. Суммарная частота встречаемости в популяции четырех генотипов, ассоциированных с гнедой мастью, составила 0,4750.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The aim of this study was to investigate the genetic structure of the Novo-Altai breed at the Extension and Agouti loci, which control skin and hair pigmentation. The Novo-Altai horse is a productive breed kept in herds. The adaptive qualities of herd horses are influenced by numerous genetic factors, including genes regulating pigmentation. Hair samples with hair follicles were collected from 80 Novo-Altai horses bred on breeding farms in the Altai Republic and Altai Region. The samples were genotyped at the Extension and Agouti loci using PCR-RFLP technology. Statistical analysis of the results was carried out to determine the frequency of alleles, the observed heterozygosity of the studied loci, and the frequency of genotypes in the population. The frequency of the dominant allele &quot;E&quot; and the recessive allele &quot;e&quot; at the Extension locus was 0.3875 and 0.6125, respectively. At the Agouti locus, the frequency of the dominant allele &quot;A&quot; was 0.4875, and the recessive allele &quot;a&quot; was 0.5125. The observed heterozygosity values were 0.475 at the Extension locus and 0.500 at the Agouti locus. Taking into account the results of testing at 2 loci, 9 different genotype variants were identified in the studied group of animals, the frequency of which varied from 0.2750 (genotype &quot;E/e, A/a&quot;) to 0.0375 (genotype &quot;E/E, a/a&quot;), indicating a high level of polymorphism in the population. The most popular basic coat color in the Novo-Altai breed was bay. The total frequency of the four genotypes associated with the bay coat colour in the population was 0.4750.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>домашние лошади</kwd>
    <kwd>новоалтайская порода лошади</kwd>
    <kwd>масти лошадей</kwd>
    <kwd>Extension</kwd>
    <kwd>Agouti</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>domestic horses</kwd>
    <kwd>Novoaltai horses</kwd>
    <kwd>coat colours</kwd>
    <kwd>Extension</kwd>
    <kwd>Agouti</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">исследование выполнено за счет гранта Российского научного фонда № 24-26-00105.</funding-statement>
    <funding-statement xml:lang="en">supported financially by Russian Science Foundation (project № 24-26-00105).</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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