Were Fertile Crescent crop progenitors higher yielding than other wild species that were never domesticated?
Identifieur interne : 000034 ( Pmc/Checkpoint ); précédent : 000033; suivant : 000035Were Fertile Crescent crop progenitors higher yielding than other wild species that were never domesticated?
Auteurs : Catherine Preece ; Alexandra Livarda ; Michael Wallace ; Gemma Martin ; Michael Charles ; Pascal-Antoine Christin ; Glynis Jones ; Mark Rees ; Colin P. OsborneSource :
- The New Phytologist [ 0028-646X ] ; 2015.
Abstract
During the origin of agriculture in the Fertile Crescent, the broad spectrum of wild plant species exploited by hunter‐gatherers narrowed dramatically. The mechanisms responsible for this specialization and the associated domestication of plants are intensely debated. We investigated why some species were domesticated rather than others, and which traits they shared. We tested whether the progenitors of cereal and pulse crops, grown individually, produced a higher yield and less chaff than other wild grasses and legumes, thereby maximizing the return per seed planted and minimizing processing time. We compared harvest traits of species originating from the Fertile Crescent, including those for which there is archaeological evidence of deliberate collection. Unexpectedly, wild crop progenitors in both families had neither higher grain yield nor, in grasses, less chaff, although they did have larger seeds. Moreover, small‐seeded grasses actually returned a higher yield relative to the mass of seeds sown. However, cereal progenitors had threefold fewer seeds per plant, representing a major difference in how seeds are packaged on plants. These data suggest that there was no intrinsic yield advantage to adopting large‐seeded progenitor species as crops. Explaining why Neolithic agriculture was founded on these species, therefore, remains an important unresolved challenge.
Url:
DOI: 10.1111/nph.13353
PubMed: 25758766
PubMed Central: 4949991
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Osborne</name><affiliation><nlm:aff id="nph13353-aff-0001"></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="nph13353-list-0001"><list-item><p>During the origin of agriculture in the Fertile Crescent, the broad spectrum of wild plant species exploited by hunter‐gatherers narrowed dramatically. The mechanisms responsible for this specialization and the associated domestication of plants are intensely debated. We investigated why some species were domesticated rather than others, and which traits they shared.</p></list-item><list-item><p>We tested whether the progenitors of cereal and pulse crops, grown individually, produced a higher yield and less chaff than other wild grasses and legumes, thereby maximizing the return per seed planted and minimizing processing time. We compared harvest traits of species originating from the Fertile Crescent, including those for which there is archaeological evidence of deliberate collection.</p></list-item><list-item><p>Unexpectedly, wild crop progenitors in both families had neither higher grain yield nor, in grasses, less chaff, although they did have larger seeds. Moreover, small‐seeded grasses actually returned a higher yield relative to the mass of seeds sown. However, cereal progenitors had threefold fewer seeds per plant, representing a major difference in how seeds are packaged on plants.</p></list-item><list-item><p>These data suggest that there was no intrinsic yield advantage to adopting large‐seeded progenitor species as crops. Explaining why Neolithic agriculture was founded on these species, therefore, remains an important unresolved challenge.</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></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="Kennett, Dj" uniqKey="Kennett D">DJ Kennett</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Gosden, C" uniqKey="Gosden C">C Gosden</name></author></analytic></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">25758766</article-id><article-id pub-id-type="pmc">4949991</article-id><article-id pub-id-type="doi">10.1111/nph.13353</article-id><article-id pub-id-type="publisher-id">NPH13353</article-id><article-id pub-id-type="other">2014-18313</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>Were Fertile Crescent crop progenitors higher yielding than other wild species that were never domesticated?</article-title></title-group><contrib-group><contrib id="nph13353-cr-0001" contrib-type="author" corresp="yes"><name><surname>Preece</surname><given-names>Catherine</given-names></name><xref ref-type="aff" rid="nph13353-aff-0001"><sup>1</sup></xref><xref ref-type="aff" rid="nph13353-curr-0001"><sup>5</sup></xref></contrib><contrib id="nph13353-cr-0002" contrib-type="author"><name><surname>Livarda</surname><given-names>Alexandra</given-names></name><xref ref-type="aff" rid="nph13353-aff-0002"><sup>2</sup></xref></contrib><contrib id="nph13353-cr-0003" contrib-type="author"><name><surname>Wallace</surname><given-names>Michael</given-names></name><xref ref-type="aff" rid="nph13353-aff-0003"><sup>3</sup></xref></contrib><contrib id="nph13353-cr-0004" contrib-type="author"><name><surname>Martin</surname><given-names>Gemma</given-names></name><xref ref-type="aff" rid="nph13353-aff-0003"><sup>3</sup></xref></contrib><contrib id="nph13353-cr-0005" contrib-type="author"><name><surname>Charles</surname><given-names>Michael</given-names></name><xref ref-type="aff" rid="nph13353-aff-0004"><sup>4</sup></xref></contrib><contrib id="nph13353-cr-0006" contrib-type="author"><name><surname>Christin</surname><given-names>Pascal‐Antoine</given-names></name><xref ref-type="aff" rid="nph13353-aff-0001"><sup>1</sup></xref></contrib><contrib id="nph13353-cr-0007" contrib-type="author"><name><surname>Jones</surname><given-names>Glynis</given-names></name><xref ref-type="aff" rid="nph13353-aff-0003"><sup>3</sup></xref></contrib><contrib id="nph13353-cr-0008" contrib-type="author"><name><surname>Rees</surname><given-names>Mark</given-names></name><xref ref-type="aff" rid="nph13353-aff-0001"><sup>1</sup></xref></contrib><contrib id="nph13353-cr-0009" contrib-type="author"><name><surname>Osborne</surname><given-names>Colin P.</given-names></name><xref ref-type="aff" rid="nph13353-aff-0001"><sup>1</sup></xref></contrib></contrib-group><aff id="nph13353-aff-0001"><label><sup>1</sup></label><named-content content-type="organisation-division">Department of Animal and Plant Sciences</named-content><institution>University of Sheffield</institution><named-content content-type="city">Sheffield</named-content><named-content content-type="post-code">S10 2TN</named-content><country country="GB">UK</country></aff><aff id="nph13353-aff-0002"><label><sup>2</sup></label><named-content content-type="organisation-division">Department of Archaeology</named-content><institution>University of Nottingham</institution><named-content content-type="city">Nottingham</named-content><named-content content-type="post-code">NG7 2RD</named-content><country country="GB">UK</country></aff><aff id="nph13353-aff-0003"><label><sup>3</sup></label><named-content content-type="organisation-division">Department of Archaeology</named-content><institution>University of Sheffield</institution><named-content content-type="city">Sheffield</named-content><named-content content-type="post-code">S1 4ET</named-content><country country="GB">UK</country></aff><aff id="nph13353-aff-0004"><label><sup>4</sup></label><named-content content-type="organisation-division">Institute of Archaeology</named-content><institution>University of Oxford</institution><named-content content-type="city">Oxford</named-content><named-content content-type="post-code">OX1 2PG</named-content><country country="GB">UK</country></aff><aff id="nph13353-curr-0001"><label><sup>5</sup></label>Present address:<named-content content-type="organisation-division">CREAF</named-content><institution>Campus de Bellaterra (UAB)</institution><named-content content-type="street">Edifici C</named-content><named-content content-type="post-code">08193</named-content><named-content content-type="city">Cerdanyola del Vallès</named-content><country country="ES">Spain</country></aff><author-notes><corresp id="correspondenceTo"><label>*</label>Author for correspondence:<break></break><italic>Catherine Preece</italic><break></break><italic>Tel: +34 935814677</italic><break></break><italic>Email: </italic><email>catherine.preece09@gmail.com</email><break></break></corresp></author-notes><pub-date pub-type="ppub"><month>8</month><year>2015</year></pub-date><pub-date pub-type="epub"><day>11</day><month>3</month><year>2015</year></pub-date><volume>207</volume><issue>3</issue><issue-id pub-id-type="doi">10.1111/nph.2015.207.issue-3</issue-id><fpage>905</fpage><lpage>913</lpage><history><date date-type="received"><day>28</day><month>8</month><year>2014</year></date><date date-type="accepted"><day>31</day><month>1</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-207-905.pdf"></self-uri><abstract id="nph13353-abs-0001"><title>Summary</title><p><list list-type="bullet" id="nph13353-list-0001"><list-item><p>During the origin of agriculture in the Fertile Crescent, the broad spectrum of wild plant species exploited by hunter‐gatherers narrowed dramatically. The mechanisms responsible for this specialization and the associated domestication of plants are intensely debated. We investigated why some species were domesticated rather than others, and which traits they shared.</p></list-item><list-item><p>We tested whether the progenitors of cereal and pulse crops, grown individually, produced a higher yield and less chaff than other wild grasses and legumes, thereby maximizing the return per seed planted and minimizing processing time. We compared harvest traits of species originating from the Fertile Crescent, including those for which there is archaeological evidence of deliberate collection.</p></list-item><list-item><p>Unexpectedly, wild crop progenitors in both families had neither higher grain yield nor, in grasses, less chaff, although they did have larger seeds. Moreover, small‐seeded grasses actually returned a higher yield relative to the mass of seeds sown. However, cereal progenitors had threefold fewer seeds per plant, representing a major difference in how seeds are packaged on plants.</p></list-item><list-item><p>These data suggest that there was no intrinsic yield advantage to adopting large‐seeded progenitor species as crops. Explaining why Neolithic agriculture was founded on these species, therefore, remains an important unresolved challenge.</p></list-item></list></p></abstract><kwd-group kwd-group-type="author-generated"><kwd id="nph13353-kwd-0001">crop progenitors</kwd><kwd id="nph13353-kwd-0002">domestication</kwd><kwd id="nph13353-kwd-0003">Fertile Crescent</kwd><kwd id="nph13353-kwd-0004">harvest traits</kwd><kwd id="nph13353-kwd-0005">origins of agriculture</kwd><kwd id="nph13353-kwd-0006">seed size</kwd><kwd id="nph13353-kwd-0007">yield</kwd></kwd-group><funding-group><award-group><funding-source>Natural Environment Research Council</funding-source><award-id>NE/H022716/1</award-id></award-group></funding-group><funding-group><award-group><funding-source>European Research Council</funding-source><award-id>269830‐EOA</award-id></award-group></funding-group><counts><page-count count="9"></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>nph13353</meta-value></custom-meta><custom-meta><meta-name>cover-date</meta-name><meta-value>August 2015</meta-value></custom-meta><custom-meta><meta-name>details-of-publishers-convertor</meta-name><meta-value>Converter:WILEY_ML3GV2_TO_NLMPMC version:4.9.2 mode:remove_FC converted:19.07.2016</meta-value></custom-meta></custom-meta-group></article-meta></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="Charles, Michael" sort="Charles, Michael" uniqKey="Charles M" first="Michael" last="Charles">Michael Charles</name><name sortKey="Christin, Pascal Ntoine" sort="Christin, Pascal Ntoine" uniqKey="Christin P" first="Pascal-Antoine" last="Christin">Pascal-Antoine Christin</name><name sortKey="Jones, Glynis" sort="Jones, Glynis" uniqKey="Jones G" first="Glynis" last="Jones">Glynis Jones</name><name sortKey="Livarda, Alexandra" sort="Livarda, Alexandra" uniqKey="Livarda A" first="Alexandra" last="Livarda">Alexandra Livarda</name><name sortKey="Martin, Gemma" sort="Martin, Gemma" uniqKey="Martin G" first="Gemma" last="Martin">Gemma Martin</name><name sortKey="Osborne, Colin P" sort="Osborne, Colin P" uniqKey="Osborne C" first="Colin P." last="Osborne">Colin P. Osborne</name><name sortKey="Preece, Catherine" sort="Preece, Catherine" uniqKey="Preece C" first="Catherine" last="Preece">Catherine Preece</name><name sortKey="Rees, Mark" sort="Rees, Mark" uniqKey="Rees M" first="Mark" last="Rees">Mark Rees</name><name sortKey="Wallace, Michael" sort="Wallace, Michael" uniqKey="Wallace M" first="Michael" last="Wallace">Michael Wallace</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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