Using modern plant trait relationships between observed and theoretical maximum stomatal conductance and vein density to examine patterns of plant macroevolution
Identifieur interne : 001C47 ( Ncbi/Merge ); précédent : 001C46; suivant : 001C48Using modern plant trait relationships between observed and theoretical maximum stomatal conductance and vein density to examine patterns of plant macroevolution
Auteurs : Jennifer C. Mcelwain ; Charilaos Yiotis ; Tracy LawsonSource :
- The New Phytologist [ 0028-646X ] ; 2015.
Abstract
Understanding the drivers of geological‐scale patterns in plant macroevolution is limited by a hesitancy to use measurable traits of fossils to infer palaeoecophysiological function. Here, scaling relationships between morphological traits including maximum theoretical stomatal conductance ( Our study demonstrated significant relationships between Expansion of the ecophysiological niche space in angiosperms, afforded by coordinated evolution of high
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DOI: 10.1111/nph.13579
PubMed: 26230251
PubMed Central: 5014202
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Mcelwain</name><affiliation><nlm:aff id="nph13579-aff-0001"></nlm:aff></affiliation><affiliation><nlm:aff id="nph13579-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Yiotis, Charilaos" sort="Yiotis, Charilaos" uniqKey="Yiotis C" first="Charilaos" last="Yiotis">Charilaos Yiotis</name><affiliation><nlm:aff id="nph13579-aff-0001"></nlm:aff></affiliation><affiliation><nlm:aff id="nph13579-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Lawson, Tracy" sort="Lawson, Tracy" uniqKey="Lawson T" first="Tracy" last="Lawson">Tracy Lawson</name><affiliation><nlm:aff id="nph13579-aff-0003"></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">26230251</idno><idno type="pmc">5014202</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5014202</idno><idno type="RBID">PMC:5014202</idno><idno type="doi">10.1111/nph.13579</idno><date when="2015">2015</date><idno type="wicri:Area/Pmc/Corpus">001070</idno><idno type="wicri:Area/Pmc/Curation">001069</idno><idno type="wicri:Area/Pmc/Checkpoint">000295</idno><idno type="wicri:Area/Ncbi/Merge">001C47</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Using modern plant trait relationships between observed and theoretical maximum stomatal conductance and vein density to examine patterns of plant macroevolution</title><author><name sortKey="Mcelwain, Jennifer C" sort="Mcelwain, Jennifer C" uniqKey="Mcelwain J" first="Jennifer C." last="Mcelwain">Jennifer C. Mcelwain</name><affiliation><nlm:aff id="nph13579-aff-0001"></nlm:aff></affiliation><affiliation><nlm:aff id="nph13579-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Yiotis, Charilaos" sort="Yiotis, Charilaos" uniqKey="Yiotis C" first="Charilaos" last="Yiotis">Charilaos Yiotis</name><affiliation><nlm:aff id="nph13579-aff-0001"></nlm:aff></affiliation><affiliation><nlm:aff id="nph13579-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Lawson, Tracy" sort="Lawson, Tracy" uniqKey="Lawson T" first="Tracy" last="Lawson">Tracy Lawson</name><affiliation><nlm:aff id="nph13579-aff-0003"></nlm:aff></affiliation></author></analytic><series><title level="j">The New Phytologist</title><idno type="ISSN">0028-646X</idno><idno type="eISSN">1469-8137</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>Summary</title><p><list list-type="bullet" id="nph13579-list-0001"><list-item><p>Understanding the drivers of geological‐scale patterns in plant macroevolution is limited by a hesitancy to use measurable traits of fossils to infer palaeoecophysiological function.</p></list-item><list-item><p>Here, scaling relationships between morphological traits including maximum theoretical stomatal conductance (<italic>g</italic><sub>max</sub>) and leaf vein density (<italic>D</italic><sub>v</sub>) and physiological measurements including operational stomatal conductance (<italic>g</italic><sub>op</sub>), saturated (<italic>A</italic><sub>sat</sub><italic>)</italic> and maximum (<italic>A</italic><sub>max</sub>) assimilation rates were investigated for 18 extant taxa in order to improve understanding of angiosperm diversification in the Cretaceous.</p></list-item><list-item><p>Our study demonstrated significant relationships between <italic>g</italic><sub>op</sub>, <italic>g</italic><sub>max</sub> and <italic>D</italic><sub>v</sub> that together can be used to estimate gas exchange and the photosynthetic capacities of fossils. We showed that acquisition of high <italic>g</italic><sub>max</sub> in angiosperms conferred a competitive advantage over gymnosperms by increasing the dynamic range (plasticity) of their gas exchange and expanding their ecophysiological niche space. We suggest that species with a high <italic>g</italic><sub>max</sub> (> 1400 mmol m<sup>−2</sup> s<sup>−1</sup>) would have been capable of maintaining a high <italic>A</italic><sub>max</sub> as the atmospheric <styled-content style="fixed-case">CO</styled-content><sub>2</sub> declined through the Cretaceous, whereas gymnosperms with a low <italic>g</italic><sub>max</sub> would experience severe photosynthetic penalty.</p></list-item><list-item><p>Expansion of the ecophysiological niche space in angiosperms, afforded by coordinated evolution of high <italic>g</italic><sub>max</sub><italic>, D</italic><sub>v</sub> and increased plasticity in <italic>g</italic><sub>op</sub><italic>,</italic> adds further functional insights into the mechanisms driving angiosperm speciation.</p></list-item></list></p></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Schulze, Ed" uniqKey="Schulze E">ED Schulze</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Hemsley, Ar" uniqKey="Hemsley A">AR Hemsley</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Luttge, U" uniqKey="Luttge U">U Lüttge</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Greihuber, J" uniqKey="Greihuber J">J Greihuber</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Ehleringer, Jr" uniqKey="Ehleringer J">JR Ehleringer</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct></listBibl></div1></back></TEI><pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">New Phytol</journal-id><journal-id journal-id-type="iso-abbrev">New Phytol</journal-id><journal-id journal-id-type="doi">10.1111/(ISSN)1469-8137</journal-id><journal-id journal-id-type="publisher-id">NPH</journal-id><journal-title-group><journal-title>The New Phytologist</journal-title></journal-title-group><issn pub-type="ppub">0028-646X</issn><issn pub-type="epub">1469-8137</issn><publisher><publisher-name>John Wiley and Sons Inc.</publisher-name><publisher-loc>Hoboken</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">26230251</article-id><article-id pub-id-type="pmc">5014202</article-id><article-id pub-id-type="doi">10.1111/nph.13579</article-id><article-id pub-id-type="publisher-id">NPH13579</article-id><article-id pub-id-type="other">2015-19478</article-id><article-categories><subj-group subj-group-type="overline"><subject>Full Paper</subject></subj-group><subj-group subj-group-type="heading"><subject>Research</subject><subj-group subj-group-type="heading"><subject>Full Papers</subject></subj-group></subj-group></article-categories><title-group><article-title>Using modern plant trait relationships between observed and theoretical maximum stomatal conductance and vein density to examine patterns of plant macroevolution</article-title></title-group><contrib-group><contrib id="nph13579-cr-0001" contrib-type="author" corresp="yes"><name><surname>McElwain</surname><given-names>Jennifer C.</given-names></name><xref ref-type="aff" rid="nph13579-aff-0001"><sup>1</sup></xref><xref ref-type="aff" rid="nph13579-aff-0002"><sup>2</sup></xref></contrib><contrib id="nph13579-cr-0002" contrib-type="author"><name><surname>Yiotis</surname><given-names>Charilaos</given-names></name><xref ref-type="aff" rid="nph13579-aff-0001"><sup>1</sup></xref><xref ref-type="aff" rid="nph13579-aff-0002"><sup>2</sup></xref></contrib><contrib id="nph13579-cr-0003" contrib-type="author"><name><surname>Lawson</surname><given-names>Tracy</given-names></name><xref ref-type="aff" rid="nph13579-aff-0003"><sup>3</sup></xref></contrib></contrib-group><aff id="nph13579-aff-0001"><label><sup>1</sup></label><named-content content-type="organisation-division">Earth Institute</named-content><named-content content-type="organisation-division">O'Brien Centre for Science</named-content><institution>University College Dublin</institution><named-content content-type="city">Belfield</named-content><country country="IE">Ireland</country></aff><aff id="nph13579-aff-0002"><label><sup>2</sup></label><named-content content-type="organisation-division">School of Biology and Environmental Science</named-content><institution>University College Dublin</institution><named-content content-type="city">Belfield</named-content><country country="IE">Ireland</country></aff><aff id="nph13579-aff-0003"><label><sup>3</sup></label><named-content content-type="organisation-division">School of Biological Science</named-content><institution>University of Essex</institution><named-content content-type="city">Colchester</named-content><named-content content-type="post-code">CO4 3SQ</named-content><country country="GB">UK</country></aff><author-notes><corresp id="correspondenceTo"><label>*</label>Author for correspondence:<break></break><italic>Jennifer C. McElwain</italic><break></break><italic>Tel: +00 353 17162524</italic><break></break><italic>Email: </italic><email>jennifer.mcelwain@ucd.ie</email><break></break></corresp></author-notes><pub-date pub-type="ppub"><month>1</month><year>2016</year></pub-date><pub-date pub-type="epub"><day>31</day><month>7</month><year>2015</year></pub-date><volume>209</volume><issue>1</issue><issue-id pub-id-type="doi">10.1111/nph.2016.209.issue-1</issue-id><fpage>94</fpage><lpage>103</lpage><history><date date-type="received"><day>26</day><month>3</month><year>2015</year></date><date date-type="accepted"><day>27</day><month>6</month><year>2015</year></date></history><permissions><pmc-comment> Copyright © 2015 New Phytologist Trust </pmc-comment>
<copyright-statement content-type="article-copyright">© 2015 The Authors. New Phytologist © 2015 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-209-94.pdf"></self-uri><abstract id="nph13579-abs-0001"><title>Summary</title><p><list list-type="bullet" id="nph13579-list-0001"><list-item><p>Understanding the drivers of geological‐scale patterns in plant macroevolution is limited by a hesitancy to use measurable traits of fossils to infer palaeoecophysiological function.</p></list-item><list-item><p>Here, scaling relationships between morphological traits including maximum theoretical stomatal conductance (<italic>g</italic><sub>max</sub>) and leaf vein density (<italic>D</italic><sub>v</sub>) and physiological measurements including operational stomatal conductance (<italic>g</italic><sub>op</sub>), saturated (<italic>A</italic><sub>sat</sub><italic>)</italic> and maximum (<italic>A</italic><sub>max</sub>) assimilation rates were investigated for 18 extant taxa in order to improve understanding of angiosperm diversification in the Cretaceous.</p></list-item><list-item><p>Our study demonstrated significant relationships between <italic>g</italic><sub>op</sub>, <italic>g</italic><sub>max</sub> and <italic>D</italic><sub>v</sub> that together can be used to estimate gas exchange and the photosynthetic capacities of fossils. We showed that acquisition of high <italic>g</italic><sub>max</sub> in angiosperms conferred a competitive advantage over gymnosperms by increasing the dynamic range (plasticity) of their gas exchange and expanding their ecophysiological niche space. We suggest that species with a high <italic>g</italic><sub>max</sub> (> 1400 mmol m<sup>−2</sup> s<sup>−1</sup>) would have been capable of maintaining a high <italic>A</italic><sub>max</sub> as the atmospheric <styled-content style="fixed-case">CO</styled-content><sub>2</sub> declined through the Cretaceous, whereas gymnosperms with a low <italic>g</italic><sub>max</sub> would experience severe photosynthetic penalty.</p></list-item><list-item><p>Expansion of the ecophysiological niche space in angiosperms, afforded by coordinated evolution of high <italic>g</italic><sub>max</sub><italic>, D</italic><sub>v</sub> and increased plasticity in <italic>g</italic><sub>op</sub><italic>,</italic> adds further functional insights into the mechanisms driving angiosperm speciation.</p></list-item></list></p></abstract><kwd-group kwd-group-type="author-generated"><kwd id="nph13579-kwd-0001">evolution of angiosperms</kwd><kwd id="nph13579-kwd-0002">functional traits</kwd><kwd id="nph13579-kwd-0003">maximum theoretical stomatal conductance (<italic>g</italic><sub>max</sub>)</kwd><kwd id="nph13579-kwd-0004">palaeophysiology</kwd><kwd id="nph13579-kwd-0005">plasticity</kwd><kwd id="nph13579-kwd-0006">stomatal density</kwd><kwd id="nph13579-kwd-0007">stomatal evolution</kwd><kwd id="nph13579-kwd-0008">vein density (<italic>D</italic><sub>v</sub>)</kwd></kwd-group><funding-group><award-group><funding-source>Science Foundation Ireland</funding-source><award-id>SFI‐PI‐1103</award-id></award-group></funding-group><counts><page-count count="10"></page-count></counts><custom-meta-group><custom-meta><meta-name>source-schema-version-number</meta-name><meta-value>2.0</meta-value></custom-meta><custom-meta><meta-name>component-id</meta-name><meta-value>nph13579</meta-value></custom-meta><custom-meta><meta-name>cover-date</meta-name><meta-value>January 2016</meta-value></custom-meta><custom-meta><meta-name>details-of-publishers-convertor</meta-name><meta-value>Converter:WILEY_ML3GV2_TO_NLMPMC version:4.9.4 mode:remove_FC converted:09.09.2016</meta-value></custom-meta></custom-meta-group></article-meta><notes><fn-group id="nph13579-ntgp-0001"><fn id="nph13579-note-0111"><p>The copyright line for this article was changed on 19 August 2015 after original online publication.</p></fn></fn-group></notes></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="Lawson, Tracy" sort="Lawson, Tracy" uniqKey="Lawson T" first="Tracy" last="Lawson">Tracy Lawson</name><name sortKey="Mcelwain, Jennifer C" sort="Mcelwain, Jennifer C" uniqKey="Mcelwain J" first="Jennifer C." last="Mcelwain">Jennifer C. Mcelwain</name><name sortKey="Yiotis, Charilaos" sort="Yiotis, Charilaos" uniqKey="Yiotis C" first="Charilaos" last="Yiotis">Charilaos Yiotis</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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