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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">83704</article-id>
   <article-id pub-id-type="doi">10.29039/rusjbpc.2023.0638</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>МОДЕЛИРОВАНИЕ В БИОФИЗИКЕ И БИОИНФОРМАТИКА</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>MODELLING IN BIOPHYCIS AND BIOINFORMATISC</subject>
    </subj-group>
    <subj-group>
     <subject>МОДЕЛИРОВАНИЕ В БИОФИЗИКЕ И БИОИНФОРМАТИКА</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">MATHEMATICAL MODELING OF THE EXPERIMENTAL EVOLUTION OF TRANSGENIC BACTERIA: “PLASMID PARADOX”</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ ЭКСПЕРИМЕНТАЛЬНОЙ ЭВОЛЮЦИИ ТРАНСГЕННЫХ БАКТЕРИЙ: «ПЛАЗМИДНЫЙ ПАРАДОКС»</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Брильков</surname>
       <given-names>А. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Brilkov</surname>
       <given-names>A. V.</given-names>
      </name>
     </name-alternatives>
     <email>abrilkov@sfu-kras.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Брилькова</surname>
       <given-names>Е. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Brilkova</surname>
       <given-names>E. V.</given-names>
      </name>
     </name-alternatives>
     <email>evmorbril@mail.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Жабрун</surname>
       <given-names>И. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Jabrun</surname>
       <given-names>I. V.</given-names>
      </name>
     </name-alternatives>
     <email>ijabrun@sfu-kras.ru</email>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ганусов</surname>
       <given-names>В. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Ganusov</surname>
       <given-names>V. V.</given-names>
      </name>
     </name-alternatives>
     <email>vitaly.ganusov@gmail.com</email>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Логинов</surname>
       <given-names>Ю. Ю.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Loginov</surname>
       <given-names>Yu. Yu.</given-names>
      </name>
     </name-alternatives>
     <email>loginov@sibsau.ru</email>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шуваев</surname>
       <given-names>А. Н.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shuvaev</surname>
       <given-names>A. N.</given-names>
      </name>
     </name-alternatives>
     <email>ashuvaev@sfu-kras.ru</email>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Сибирский федеральный университет</institution>
     <city>Красноярск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Siberian Federal University</institution>
     <city>Krasnoyarsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Сибирский федеральный университет</institution>
     <city>Красноярск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Siberian Federal University</institution>
     <city>Krasnoyarsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Институт биофизики ФИЦ СО РАН</institution>
     <city>Красноярск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of biophysics FRC SB RAS</institution>
     <city>Krasnoyarsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Сибирский федеральный университет</institution>
     <city>Красноярск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Siberian Federal University</institution>
     <city>Krasnoyarsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Университет Теннесси</institution>
     <city>Ноксвилл</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">University of Tennessee</institution>
     <city>Knoxville</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Сибирский государственный университет науки и технологий им. акад. М.Ф. Решетнева</institution>
     <city>Красноярск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Reshetnev Siberian State University of Science and Technology</institution>
     <city>Krasnoyarsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Сибирский федеральный университет</institution>
     <city>Красноярск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Siberian Federal University</institution>
     <city>Krasnoyarsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2024-06-06T08:46:28+03:00">
    <day>06</day>
    <month>06</month>
    <year>2024</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2024-06-06T08:46:28+03:00">
    <day>06</day>
    <month>06</month>
    <year>2024</year>
   </pub-date>
   <volume>8</volume>
   <issue>4</issue>
   <fpage>392</fpage>
   <lpage>400</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-08-01T00:00:00+03:00">
     <day>01</day>
     <month>08</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/83704/view">https://rusjbpc.ru/en/nauka/article/83704/view</self-uri>
   <abstract xml:lang="ru">
    <p>В настоящей работе построена математическая модель распределения клеток трансгенных бактерий, по количеству содержащихся в них плазмид. Это позволяет изучать закономерности выживания трансгенных микроорганизмов в определенных экологических условиях с учетом различных характеристик трансгенных штаммов, например, стабильности плазмид в новых клетках, «популяционной стоимости» поддержания коньюгативных и неконьюгативных плазмид, эффективности экспрессии клонированных на плазмидах генов и других. «Плазмидный парадокс» заключается в том, что хотя обычно присутствие плазмид, содержащих клонированные гены, снижает удельную скорость роста трансгенных бактерий, но при длительном росте бактерий в неселективных условиях («экспериментальная эволюция», 20-30 или более генераций исходной формы без антибиотиков) «стоимость приспособленности», снижается на порядок-два. Анализ экспериментальных приводит к выводу, что это связано с изменением разницы в скоростях роста плазмидных и бесплазмидных клеток, с изменением вероятности образования бесплазмидных клеток, копийности плазмид и экспрессии клонированных генов в клетках трансгенных бактерий в различных экологических условиях.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>In the present work, a mathematical model for the distribution of transgenic bacteria cells by the number of plasmids contained in them is constructed. This makes it possible to study the patterns of survival of transgenic microorganisms under certain environmental conditions, taking into account various characteristics of transgenic strains, for example, the stability of plasmids in new cells, the “population cost” of maintaining conjugative and non-conjugative plasmids, the efficiency of expression of genes cloned on plasmids, and others. The &quot;plasmid paradox&quot; lies in the fact that although the presence of plasmids containing cloned genes usually reduces the specific growth rate of transgenic bacteria, but with prolonged growth of bacteria under non-selective conditions (&quot;experimental evolution&quot;, 20-30 or more generations of the original form without antibiotics) “cost of fitness” is reduced by an order of magnitude or two. An analysis of the experimental results leads to the conclusion that this is due to a change in the difference in the growth rates of plasmid and plasmid-free cells, with a change in the probability of formation of plasmid-free cells, the copy number of plasmids, and the expression of cloned genes in cells of transgenic bacteria under various environmental conditions.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>Трансгенные бактерии</kwd>
    <kwd>экспериментальная эволюция</kwd>
    <kwd>«плазмидный парадокс»</kwd>
    <kwd>математическое моделирование</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>transgenic bacteria</kwd>
    <kwd>experimental evolution</kwd>
    <kwd>“plasmid paradox”</kwd>
    <kwd>mathematic modeling</kwd>
   </kwd-group>
  </article-meta>
 </front>
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