Recent origin and rapid speciation of Neotropical orchids in the world's richest plant biodiversity hotspot
Identifieur interne : 002649 ( Pmc/Curation ); précédent : 002648; suivant : 002650Recent origin and rapid speciation of Neotropical orchids in the world's richest plant biodiversity hotspot
Auteurs : Oscar Alejandro Pérez-Escobar ; Guillaume Chomicki ; Fabien L. Condamine ; Adam P. Karremans ; Diego Bogarín ; Nicholas J. Matzke ; Daniele Silvestro ; Alexandre AntonelliSource :
- The New Phytologist [ 0028-646X ] ; 2017.
Abstract
The Andean mountains of South America are the most species‐rich biodiversity hotspot worldwide with We address this knowledge gap by inferring the biogeographical history and diversification dynamics of the two largest Neotropical orchid groups (Cymbidieae and Pleurothallidinae), using two unparalleled, densely sampled orchid phylogenies (including more than 400 newly generated We find that the majority of Andean orchid lineages only originated in the last 20–15 million yr. Andean lineages are derived from lowland Amazonian ancestors, with additional contributions from Central America and the Antilles. Species diversification is correlated with Andean orogeny, and multiple migrations and recolonizations across the Andes indicate that mountains do not constrain orchid dispersal over long timescales. Our study sheds new light on the timing and geography of a major Neotropical diversification, and suggests that mountain uplift promotes species diversification across all elevational zones.
Url:
DOI: 10.1111/nph.14629
PubMed: 28631324
PubMed Central: 5575461
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<front><div type="abstract" xml:lang="en"><title>Summary</title>
<p><list list-type="bullet" id="nph14629-list-0001"><list-item><p>The Andean mountains of South America are the most species‐rich biodiversity hotspot worldwide with <italic>c</italic>
. 15% of the world's plant species, in only 1% of the world's land surface. Orchids are a key element of the Andean flora, and one of the most prominent components of the Neotropical epiphyte diversity, yet very little is known about their origin and diversification.</p>
</list-item>
<list-item><p>We address this knowledge gap by inferring the biogeographical history and diversification dynamics of the two largest Neotropical orchid groups (Cymbidieae and Pleurothallidinae), using two unparalleled, densely sampled orchid phylogenies (including more than 400 newly generated <styled-content style="fixed-case">DNA</styled-content>
sequences), comparative phylogenetic methods, geological and biological datasets.</p>
</list-item>
<list-item><p>We find that the majority of Andean orchid lineages only originated in the last 20–15 million yr. Andean lineages are derived from lowland Amazonian ancestors, with additional contributions from Central America and the Antilles. Species diversification is correlated with Andean orogeny, and multiple migrations and recolonizations across the Andes indicate that mountains do not constrain orchid dispersal over long timescales.</p>
</list-item>
<list-item><p>Our study sheds new light on the timing and geography of a major Neotropical diversification, and suggests that mountain uplift promotes species diversification across all elevational zones.</p>
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<article-id pub-id-type="publisher-id">NPH14629</article-id>
<article-id pub-id-type="other">2017-23782</article-id>
<article-categories><subj-group subj-group-type="overline"><subject>Full Paper</subject>
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<subj-group subj-group-type="heading"><subject>Research</subject>
<subj-group subj-group-type="heading"><subject>Full Papers</subject>
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</article-categories>
<title-group><article-title>Recent origin and rapid speciation of Neotropical orchids in the world's richest plant biodiversity hotspot</article-title>
</title-group>
<contrib-group><contrib id="nph14629-cr-0001" contrib-type="author" corresp="yes"><name><surname>Pérez‐Escobar</surname>
<given-names>Oscar Alejandro</given-names>
</name>
<address><email>oapereze@yahoo.com</email>
</address>
<xref ref-type="aff" rid="nph14629-aff-0001"><sup>1</sup>
</xref>
<xref ref-type="author-notes" rid="nph14629-note-1001"><sup>†</sup>
</xref>
</contrib>
<contrib id="nph14629-cr-0002" contrib-type="author" corresp="yes"><name><surname>Chomicki</surname>
<given-names>Guillaume</given-names>
</name>
<address><email>guillaume.chomicki@gmail.com</email>
</address>
<xref ref-type="aff" rid="nph14629-aff-0002"><sup>2</sup>
</xref>
<xref ref-type="author-notes" rid="nph14629-note-1001"><sup>†</sup>
</xref>
</contrib>
<contrib id="nph14629-cr-0003" contrib-type="author"><name><surname>Condamine</surname>
<given-names>Fabien L.</given-names>
</name>
<xref ref-type="aff" rid="nph14629-aff-0003"><sup>3</sup>
</xref>
</contrib>
<contrib id="nph14629-cr-0004" contrib-type="author"><name><surname>Karremans</surname>
<given-names>Adam P.</given-names>
</name>
<xref ref-type="aff" rid="nph14629-aff-0004"><sup>4</sup>
</xref>
<xref ref-type="aff" rid="nph14629-aff-0005"><sup>5</sup>
</xref>
</contrib>
<contrib id="nph14629-cr-0005" contrib-type="author"><name><surname>Bogarín</surname>
<given-names>Diego</given-names>
</name>
<xref ref-type="aff" rid="nph14629-aff-0004"><sup>4</sup>
</xref>
<xref ref-type="aff" rid="nph14629-aff-0005"><sup>5</sup>
</xref>
</contrib>
<contrib id="nph14629-cr-0006" contrib-type="author"><name><surname>Matzke</surname>
<given-names>Nicholas J.</given-names>
</name>
<xref ref-type="aff" rid="nph14629-aff-0006"><sup>6</sup>
</xref>
</contrib>
<contrib id="nph14629-cr-0007" contrib-type="author"><name><surname>Silvestro</surname>
<given-names>Daniele</given-names>
</name>
<xref ref-type="aff" rid="nph14629-aff-0007"><sup>7</sup>
</xref>
<xref ref-type="aff" rid="nph14629-aff-0008"><sup>8</sup>
</xref>
<xref ref-type="aff" rid="nph14629-aff-0009"><sup>9</sup>
</xref>
</contrib>
<contrib id="nph14629-cr-0008" contrib-type="author"><name><surname>Antonelli</surname>
<given-names>Alexandre</given-names>
</name>
<xref ref-type="aff" rid="nph14629-aff-0007"><sup>7</sup>
</xref>
<xref ref-type="aff" rid="nph14629-aff-0009"><sup>9</sup>
</xref>
<xref ref-type="aff" rid="nph14629-aff-0010"><sup>10</sup>
</xref>
</contrib>
</contrib-group>
<aff id="nph14629-aff-0001"><label><sup>1</sup>
</label>
<named-content content-type="organisation-division">Identification and Naming Department</named-content>
<institution>Royal Botanic Gardens, Kew</institution>
<named-content content-type="city">Richmond</named-content>
<named-content content-type="post-code">TW9 3AB</named-content>
<country country="GB">UK</country>
</aff>
<aff id="nph14629-aff-0002"><label><sup>2</sup>
</label>
<named-content content-type="organisation-division">Systematic Botany and Mycology</named-content>
<institution>University of Munich (LMU)</institution>
<named-content content-type="street">67 Menzinger Str.</named-content>
<named-content content-type="city">Munich</named-content>
<named-content content-type="post-code">80638</named-content>
<country country="DE">Germany</country>
</aff>
<aff id="nph14629-aff-0003"><label><sup>3</sup>
</label>
<named-content content-type="organisation-division">CNRS</named-content>
<institution>UMR 5554 Institut des Sciences de l'Evolution (Université de Montpellier)</institution>
<named-content content-type="street">Place Eugène Bataillon</named-content>
<named-content content-type="post-code">34095</named-content>
<named-content content-type="city">Montpellier</named-content>
<country country="FR">France</country>
</aff>
<aff id="nph14629-aff-0004"><label><sup>4</sup>
</label>
<named-content content-type="organisation-division">Lankester Botanical Garden</named-content>
<institution>University of Costa Rica</institution>
<named-content content-type="street">PO Box 302‐7050</named-content>
<named-content content-type="city">Cartago</named-content>
<country country="CR">Costa Rica</country>
</aff>
<aff id="nph14629-aff-0005"><label><sup>5</sup>
</label>
<institution>Naturalis Biodiversity Center</institution>
<named-content content-type="city">Leiden</named-content>
<named-content content-type="post-code">2333 CR</named-content>
<country country="NL">the Netherlands</country>
</aff>
<aff id="nph14629-aff-0006"><label><sup>6</sup>
</label>
<named-content content-type="organisation-division">Division of Ecology, Evolution, and Genetics</named-content>
<named-content content-type="organisation-division">Research School of Biology</named-content>
<institution>The Australian National University</institution>
<named-content content-type="city">Canberra</named-content>
<named-content content-type="country-part">ACT</named-content>
<named-content content-type="post-code">2601</named-content>
<country country="AU">Australia</country>
</aff>
<aff id="nph14629-aff-0007"><label><sup>7</sup>
</label>
<named-content content-type="organisation-division">Department of Biological and Environmental Sciences</named-content>
<institution>University of Gothenburg</institution>
<named-content content-type="post-code">413 19</named-content>
<named-content content-type="city">Gothenburg</named-content>
<country country="SE">Sweden</country>
</aff>
<aff id="nph14629-aff-0008"><label><sup>8</sup>
</label>
<named-content content-type="organisation-division">Department of Computational Biology, Biophore</named-content>
<institution>University of Lausanne</institution>
<named-content content-type="post-code">1015</named-content>
<named-content content-type="city">Lausanne</named-content>
<country country="CH">Switzerland</country>
</aff>
<aff id="nph14629-aff-0009"><label><sup>9</sup>
</label>
<institution>Gothenburg Global Biodiversity Centre</institution>
<named-content content-type="post-code">Box 461</named-content>
<named-content content-type="post-code">SE‐405 30</named-content>
<named-content content-type="city">Göteborg</named-content>
<country country="SE">Sweden</country>
</aff>
<aff id="nph14629-aff-0010"><label><sup>10</sup>
</label>
<institution>Gothenburg Botanical Garden</institution>
<named-content content-type="street">Carl Skottsbergs gata 22A</named-content>
<named-content content-type="post-code">41319</named-content>
<named-content content-type="city">Gothenburg</named-content>
<country country="SE">Sweden</country>
</aff>
<author-notes><corresp id="correspondenceTo"><label>*</label>
Authors for correspondence:<break></break>
<italic>Oscar Alejandro Pérez‐Escobar</italic>
<break></break>
<italic>Tel: +44 020 8332 5178</italic>
<break></break>
<italic>Email: </italic>
<email>oapereze@yahoo.com</email>
<break></break>
<italic>Guillaume Chomicki</italic>
<break></break>
<italic>Tel: +49 89 17861 285</italic>
<break></break>
<italic>Email: </italic>
<email>guillaume.chomicki@gmail.com</email>
<break></break>
</corresp>
<fn fn-type="equal" id="nph14629-note-1001"><label>†</label>
<p>These authors contributed equally to this work.</p>
</fn>
</author-notes>
<pub-date pub-type="epub"><day>20</day>
<month>6</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="ppub"><month>7</month>
<year>2017</year>
</pub-date>
<volume>215</volume>
<issue>2</issue>
<issue-id pub-id-type="doi">10.1111/nph.2017.215.issue-2</issue-id>
<fpage>891</fpage>
<lpage>905</lpage>
<history><date date-type="received"><day>06</day>
<month>2</month>
<year>2017</year>
</date>
<date date-type="accepted"><day>07</day>
<month>4</month>
<year>2017</year>
</date>
</history>
<permissions><pmc-comment> Copyright © 2017 New Phytologist Trust </pmc-comment>
<copyright-statement content-type="article-copyright">© 2017 The Authors. New Phytologist © 2017 New Phytologist Trust</copyright-statement>
<license license-type="creativeCommonsBy"><license-p>This is an open access article under the terms of the <ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution</ext-link>
License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<self-uri content-type="pdf" xlink:type="simple" xlink:href="file:NPH-215-891.pdf"></self-uri>
<abstract id="nph14629-abs-0001"><title>Summary</title>
<p><list list-type="bullet" id="nph14629-list-0001"><list-item><p>The Andean mountains of South America are the most species‐rich biodiversity hotspot worldwide with <italic>c</italic>
. 15% of the world's plant species, in only 1% of the world's land surface. Orchids are a key element of the Andean flora, and one of the most prominent components of the Neotropical epiphyte diversity, yet very little is known about their origin and diversification.</p>
</list-item>
<list-item><p>We address this knowledge gap by inferring the biogeographical history and diversification dynamics of the two largest Neotropical orchid groups (Cymbidieae and Pleurothallidinae), using two unparalleled, densely sampled orchid phylogenies (including more than 400 newly generated <styled-content style="fixed-case">DNA</styled-content>
sequences), comparative phylogenetic methods, geological and biological datasets.</p>
</list-item>
<list-item><p>We find that the majority of Andean orchid lineages only originated in the last 20–15 million yr. Andean lineages are derived from lowland Amazonian ancestors, with additional contributions from Central America and the Antilles. Species diversification is correlated with Andean orogeny, and multiple migrations and recolonizations across the Andes indicate that mountains do not constrain orchid dispersal over long timescales.</p>
</list-item>
<list-item><p>Our study sheds new light on the timing and geography of a major Neotropical diversification, and suggests that mountain uplift promotes species diversification across all elevational zones.</p>
</list-item>
</list>
</p>
</abstract>
<kwd-group kwd-group-type="author-generated"><kwd id="nph14629-kwd-0001">Andes</kwd>
<kwd id="nph14629-kwd-0002">biodiversity hotspots</kwd>
<kwd id="nph14629-kwd-0003">biogeography</kwd>
<kwd id="nph14629-kwd-0004">diversification</kwd>
<kwd id="nph14629-kwd-0005">molecular clocks</kwd>
<kwd id="nph14629-kwd-0006">mountain building</kwd>
<kwd id="nph14629-kwd-0007">neotropics</kwd>
<kwd id="nph14629-kwd-0008">Orchidaceae</kwd>
</kwd-group>
<funding-group><award-group><funding-source>Colombian National Science Foundation (COLCIENCIAS) scholarship</funding-source>
</award-group>
<award-group><funding-source>German Science Foundation grant</funding-source>
<award-id>RE 603/20</award-id>
</award-group>
<award-group><funding-source>Marie Curie grant (BIOMME project)</funding-source>
<award-id>IOF‐627684</award-id>
</award-group>
<award-group><funding-source>Agence Nationale de la Recherche (CEBA)</funding-source>
<award-id>ANR‐10‐LABX‐25‐01</award-id>
</award-group>
<award-group><funding-source>Alberta Mennega Foundation</funding-source>
</award-group>
<award-group><funding-source>National Institute for Mathematical and Biological Synthesis</funding-source>
</award-group>
<award-group><funding-source>National Science Foundation (NSF)</funding-source>
<award-id>EFJ0832858</award-id>
</award-group>
<award-group><funding-source>University of Tennessee</funding-source>
</award-group>
<award-group><funding-source>Knoxville</funding-source>
</award-group>
<award-group><funding-source>Discovery Early Career Researcher Award</funding-source>
<award-id>DE150101773</award-id>
</award-group>
<award-group><funding-source>Australian Research Council</funding-source>
</award-group>
<award-group><funding-source>Australian National University</funding-source>
</award-group>
<award-group><funding-source>Swedish Research Council</funding-source>
<award-id>2015‐04748</award-id>
</award-group>
<award-group><funding-source>European Research Council</funding-source>
<award-id>331024</award-id>
</award-group>
<award-group><funding-source>European Union's Seventh Framework Program</funding-source>
<award-id>FP/2007‐2013</award-id>
</award-group>
<award-group><funding-source>Swedish Foundation for Strategic Research</funding-source>
</award-group>
<award-group><funding-source>Wallenberg Academy Fellowship</funding-source>
</award-group>
</funding-group>
<counts><fig-count count="4"></fig-count>
<table-count count="0"></table-count>
<page-count count="15"></page-count>
<word-count count="10643"></word-count>
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