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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Ecological genetics</journal-id><journal-title-group><journal-title xml:lang="en">Ecological genetics</journal-title><trans-title-group xml:lang="ru"><trans-title>Экологическая генетика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1811-0932</issn><issn publication-format="electronic">2411-9202</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">15216</article-id><article-id pub-id-type="doi">10.17816/ecogen17427-35</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Genetic basis of ecosystems evolution</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Генетические основы эволюции экосистем</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The study of hybridization processes within genus Sparganium L. Subgenus Xanthosparganium holmb. Based on data of next generation sequencing (NGS)</article-title><trans-title-group xml:lang="ru"><trans-title>Гибридизационные процессы в рамках рода Sparganium L. Подрода Xanthosparganium holmb. По данным секвенирования следующего поколения (next generation sequencing — NGS)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="spin">6944-1980</contrib-id><name-alternatives><name xml:lang="en"><surname>Belyakov</surname><given-names>Evgeniy A.</given-names></name><name xml:lang="ru"><surname>Беляков</surname><given-names>Евгений Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Candidate of Biological Sciences, Senior Researcher, Laboratory of Higher Aquatic Plants</p></bio><bio xml:lang="ru"><p>канд. биол. наук, старший научный сотрудник, лаборатория высшей водной растительности</p></bio><email>eugenybeliakov@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="scopus">8619012500</contrib-id><contrib-id contrib-id-type="researcherid">J-4970-2018</contrib-id><contrib-id contrib-id-type="spin">9496-0538</contrib-id><name-alternatives><name xml:lang="en"><surname>Machs</surname><given-names>Eduard M.</given-names></name><name xml:lang="ru"><surname>Мачс</surname><given-names>Эдуард Модрисович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Candidate of Biological Sciences, Senior Researcher, Laboratory of Biosystematics and Cytology</p></bio><bio xml:lang="ru"><p>канд. биол. наук, старший научный сотрудник, лаборатория биосистематики и цитологии</p></bio><email>emachs@binran.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9278-0937</contrib-id><contrib-id contrib-id-type="scopus">6506004774</contrib-id><contrib-id contrib-id-type="researcherid">L-7482-2015</contrib-id><contrib-id contrib-id-type="spin">4271-1072</contrib-id><name-alternatives><name xml:lang="en"><surname>Mikhailova</surname><given-names>Yulia V.</given-names></name><name xml:lang="ru"><surname>Михайлова</surname><given-names>Юлия Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Candidate of Biological Sciences, Researcher, Laboratory of Biosystematics and Cytology</p></bio><bio xml:lang="ru"><p>канд. биол. наук, научный сотрудник, лаборатория биосистематики и цитологии</p></bio><email>ymikhaylova@binran.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1146-1622</contrib-id><contrib-id contrib-id-type="scopus">23767636100</contrib-id><contrib-id contrib-id-type="spin">6206-2123</contrib-id><name-alternatives><name xml:lang="en"><surname>Rodionov</surname><given-names>Aleksandr V.</given-names></name><name xml:lang="ru"><surname>Родионов</surname><given-names>Александр Викеньтьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Doctor of Biological Sciences, Professor, Chief Researcher with the Assignment of the Duties of the Head of the Laboratory of Biosystematics and Cytology</p></bio><bio xml:lang="ru"><p>д-р биол. наук, профессор, главный научный сотрудник с возложением обязанностей заведующего лабораторией биосистематики и цитологии; профессор биологического ф-та</p></bio><email>avrodionov@mail.ru</email><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Papanin Institute for Biology of Inland Waters, RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН «Институт биологии внутренних вод им. И.Д. Папанина» РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Cherepovets State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Череповецкий государственный университет»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Komarov Botanical Institute RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН «Ботанический институт им. В.Л. Комарова» РАН</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">St. Petersburg State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2019-10-07" publication-format="electronic"><day>07</day><month>10</month><year>2019</year></pub-date><pub-date date-type="pub" iso-8601-date="2019-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2019</year></pub-date><volume>17</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>27</fpage><lpage>35</lpage><history><date date-type="received" iso-8601-date="2019-07-04"><day>04</day><month>07</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-10-07"><day>07</day><month>10</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Belyakov E., Machs E., Mikhailova Y., Rodionov A.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Беляков Е.А., Мачс Э.М., Михайлова Ю.В., Родионов А.В.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Belyakov E., Machs E., Mikhailova Y., Rodionov A.V.</copyright-holder><copyright-holder xml:lang="ru">Беляков Е.А., Мачс Э.М., Михайлова Ю.В., Родионов А.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/ecolgenet/article/view/15216">https://journals.eco-vector.com/ecolgenet/article/view/15216</self-uri><abstract xml:lang="en"><p>The study represents the results of research of intragenic polymorphism in transcribed spacer ITS1 of the <italic>35S</italic> rRNA genes in representatives of subgenus <italic>Xanthosparganium</italic> genus <italic>Sparganium</italic> which were obtained by means of locus-specific next generation sequencing on the platform Illumina MiSeq. It was shown that ribotype variations in studied samples generally correspond to the division of this genus into three sections – <italic>Erecta</italic> (subgenus <italic>Sparganium</italic>), <italic>Natantia</italic> and <italic>Minima</italic> (subgenus <italic>Xanthosparganium</italic>). High level of intragenic polymorphism was revealed in <italic>S. hyperboreum</italic>, with ribotypes distributed among several groups. Genome of this species includes ribotypes which are typical for other species in subgenus <italic>Xanthosparganium</italic>. For two investigated <italic>S. glomeratum</italic> samples, there were no ribotypes similar to such ribotypes in other species of <italic>Natantia</italic> section. <italic>S. glomeratum</italic> has got ribotypes identical with <italic>S. hyperboreum</italic> of <italic>Minima</italic> section. This feature may be the evidence of ancient intersectional hybridization of these two species. Characteristics of rDNA in <italic>S. glomeratum</italic> are in favor of putting this species into <italic>Minima</italic> section. It was suggested that speciation processes within the genus could be based not only on hybridization but also went on in allopatric way. The fist statement is supported by the presence of similar and identical ribotypes in <italic>S. emersum</italic>, <italic>S.</italic> ×<italic> longifolium</italic>, <italic>S. gramineum</italic> and <italic>S. hyperboreum</italic>, the second – as it was mentioned by other researchers, is due to close relationship between North American and Eurasian taxa.</p></abstract><trans-abstract xml:lang="ru"><p>В работе изложены результаты сравнительного исследования внутригеномного полиморфизма транскрибируемого спейсера ITS1 гена <italic>35S</italic> рРНК у представителей подрода <italic>Xanthosparganium</italic> рода <italic>Sparganium</italic>, полученные методом локус-специфичного секвенирования следующего поколения на платформе Illumina MiSeq. Показано, что вариации риботипов изученных образцов, в целом, соответствуют делению рода на три секции — <italic>Erecta</italic> (подрод <italic>Sparganium</italic>), <italic>Natantia</italic> и <italic>Minima</italic> (подрод <italic>Xanthosparganium</italic>). Высокий уровень внутригеномного полимофизма выявлен у <italic>S. hyperboreum</italic>, риботипы которого были распределены по нескольким группам. В геноме этого вида присутствуют риботипы, характерные для других видов подрода <italic>Xanthosparganium</italic>. У двух изученных образцов <italic>S. glomeratum</italic> нами не обнаружено риботипов, сходных с таковыми у других видов секции <italic>Natantia</italic>. <italic>S. glomeratum</italic> имеет одинаковые риботипы с <italic>S. hyperboreum</italic> из секции <italic>Minima</italic>. Такая особенность может являться признаком древней межсекционной гибридизации этих двух видов. Особенности рДНК <italic>S. glomeratum</italic> говорят в пользу того, что вид может быть отнесен к секции <italic>Minima</italic>. Высказано мнение, что видообразовательные процессы в рамках рода могли происходить не только на основе гибридизации, но и аллопатрическим путем. Первое подтверждается наличием близких и одинаковых риботипов у <italic>S. emersum</italic>, <italic>S</italic>. × <italic>longifolium</italic>, <italic>S. gramineum</italic> и <italic>S. hyperboreum</italic>; второе, как ранее указывалось другими исследователями, кроется в близкой связи североамериканских и евроазиатских таксонов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Typhaceae</kwd><kwd>bur-reed</kwd><kwd>gene systematics</kwd><kwd>molecular phylogeny</kwd><kwd>interspecific hybridization</kwd><kwd>speciation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Typhaceae</kwd><kwd>ежеголовник</kwd><kwd>геносистематика</kwd><kwd>молекулярная филогения</kwd><kwd>межвидовая гибридизация</kwd><kwd>видообразование</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Исследование было поддержано проектом РФФИ № 18-34-00257 мол_а “Молекулярная филогения, адаптивный потенциал и особенности морфологической эволюции некоторых сосудистых растений при освоении водной среды”, а также, частично, грантом РФФИ № 18-04-01040 “Пути и механизмы изменений геномов и кариотипов цветковых растений у межвидовых гибридов и гибридогенных видов”.</institution></institution-wrap><institution-wrap><institution xml:lang="en">The study was supported by the RFBR project No. 18-34-00257 mol_a “Molecular phylogeny, adaptive potential and features of the morphological evolution of some vascular plants during the development of the aquatic environment”, and also, in part, by the RFBR grant No. 18-04-01040 “Ways and mechanisms of changes in genomes and karyotypes of flowering plants in interspecific hybrids and hybrigenous species. ”</institution></institution-wrap></funding-source><award-id>Array</award-id></award-group><funding-statement xml:lang="en">The study was supported by the RFBR project No. 18-34-00257 mol_a "Molecular phylogeny, adaptive potential and features of the morphological evolution of some vascular plants during the development of the aquatic environment", as well as, partially, by the RFBR grant No. 18-04-01040 "Ways and mechanisms of changes in genomes and karyotypes of flowering plants in interspecific hybrids and hybrid species ”.</funding-statement><funding-statement xml:lang="ru">Исследование было поддержано проектом РФФИ № 18-34-00257 мол_а «Молекулярная филогения, адаптивный потенциал и особенности морфологической эволюции некоторых сосудистых растений при освоении водной среды», а также, частично, грантом РФФИ № 18-04-01040 «Пути и механизмы изменений геномов и кариотипов цветковых растений у межвидовых гибридов и гибридогенных видов».</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Baack EJ, Rieseberg LH. 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