Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (Quercus suber L. and Q. ilex L.) in Southern France: inferring crosses and dynamics
Identifieur interne : 000038 ( Istex/Corpus ); précédent : 000037; suivant : 000039Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (Quercus suber L. and Q. ilex L.) in Southern France: inferring crosses and dynamics
Auteurs : C. Mir ; P. Jarne ; V. Sarda ; A. Bonin ; R. LumaretSource :
- Plant Biology [ 1435-8603 ] ; 2009-03.
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Abstract
Gene flow is particularly frequent in the genus Quercus (oaks), especially between closely related species. We focus here on Quercus ilex and the cork‐producing Quercus suber, which occasionally hybridize although they are phylogenetically markedly separated. Morphological observations were combined with both allozymic and chloroplastic diagnostic markers to characterize hybridization and introgression and to infer their dynamics in two French regions (French Catalonia and Provence), which are separated by several hundred kilometres. Some hybrids were found in both regions, indicating recent hybridization events. As expected from previous studies, most hybrids resulted from ♀Q. ilex × ♂Q. suber crosses, but our data showed that the reciprocal cross is also possible. Partial independence between nuclear and chloroplastic introgression was observed in the two species. Nuclear introgression was limited in both species and both regions, with no preferred direction. In Provence, chloroplastic introgression was very rare in both species. Conversely, all Q. suber individuals from French Catalonia were introgressed by Q. ilex chlorotypes. This might be explained by introgression in the Iberian Peninsula antedating the first occurrence of the two species in French Catalonia. We also observed a new chlorotype that was created locally, and was exchanged between the two species. However, the two species still remain genetically differentiated. The dynamics and complexity of exchanges and the factors determining them (including human management of Q. suber) are discussed.
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DOI: 10.1111/j.1438-8677.2008.00106.x
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Sarda</name><affiliation><mods:affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</mods:affiliation></affiliation></author><author><name sortKey="Bonin, A" sort="Bonin, A" uniqKey="Bonin A" first="A." last="Bonin">A. Bonin</name><affiliation><mods:affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</mods:affiliation></affiliation></author><author><name sortKey="Lumaret, R" sort="Lumaret, R" uniqKey="Lumaret R" first="R." last="Lumaret">R. 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Mir</name><affiliation><mods:affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</mods:affiliation></affiliation></author><author><name sortKey="Jarne, P" sort="Jarne, P" uniqKey="Jarne P" first="P." last="Jarne">P. Jarne</name><affiliation><mods:affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</mods:affiliation></affiliation></author><author><name sortKey="Sarda, V" sort="Sarda, V" uniqKey="Sarda V" first="V." last="Sarda">V. Sarda</name><affiliation><mods:affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</mods:affiliation></affiliation></author><author><name sortKey="Bonin, A" sort="Bonin, A" uniqKey="Bonin A" first="A." last="Bonin">A. Bonin</name><affiliation><mods:affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</mods:affiliation></affiliation></author><author><name sortKey="Lumaret, R" sort="Lumaret, R" uniqKey="Lumaret R" first="R." last="Lumaret">R. Lumaret</name><affiliation><mods:affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Plant Biology</title><idno type="ISSN">1435-8603</idno><idno type="eISSN">1438-8677</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2009-03">2009-03</date><biblScope unit="volume">11</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="213">213</biblScope><biblScope unit="page" to="226">226</biblScope></imprint><idno type="ISSN">1435-8603</idno></series><idno type="istex">502C6F6957C48E913E4D3B37C54FCBA120272EE6</idno><idno type="DOI">10.1111/j.1438-8677.2008.00106.x</idno><idno type="ArticleID">PLB106</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1435-8603</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Allozymes</term><term>Quercus</term><term>cpDNA</term><term>genetic introgression</term><term>hybridization</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Gene flow is particularly frequent in the genus Quercus (oaks), especially between closely related species. We focus here on Quercus ilex and the cork‐producing Quercus suber, which occasionally hybridize although they are phylogenetically markedly separated. Morphological observations were combined with both allozymic and chloroplastic diagnostic markers to characterize hybridization and introgression and to infer their dynamics in two French regions (French Catalonia and Provence), which are separated by several hundred kilometres. Some hybrids were found in both regions, indicating recent hybridization events. As expected from previous studies, most hybrids resulted from ♀Q. ilex × ♂Q. suber crosses, but our data showed that the reciprocal cross is also possible. Partial independence between nuclear and chloroplastic introgression was observed in the two species. Nuclear introgression was limited in both species and both regions, with no preferred direction. In Provence, chloroplastic introgression was very rare in both species. Conversely, all Q. suber individuals from French Catalonia were introgressed by Q. ilex chlorotypes. This might be explained by introgression in the Iberian Peninsula antedating the first occurrence of the two species in French Catalonia. We also observed a new chlorotype that was created locally, and was exchanged between the two species. However, the two species still remain genetically differentiated. The dynamics and complexity of exchanges and the factors determining them (including human management of Q. suber) are discussed.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>C. Mir</name><affiliations><json:string>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</json:string></affiliations></json:item><json:item><name>P. Jarne</name><affiliations><json:string>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</json:string></affiliations></json:item><json:item><name>V. Sarda</name><affiliations><json:string>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</json:string></affiliations></json:item><json:item><name>A. Bonin</name><affiliations><json:string>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</json:string></affiliations></json:item><json:item><name>R. Lumaret</name><affiliations><json:string>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Allozymes</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>cpDNA</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>genetic introgression</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>hybridization</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Quercus</value></json:item></subject><articleId><json:string>PLB106</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>Gene flow is particularly frequent in the genus Quercus (oaks), especially between closely related species. We focus here on Quercus ilex and the cork‐producing Quercus suber, which occasionally hybridize although they are phylogenetically markedly separated. Morphological observations were combined with both allozymic and chloroplastic diagnostic markers to characterize hybridization and introgression and to infer their dynamics in two French regions (French Catalonia and Provence), which are separated by several hundred kilometres. Some hybrids were found in both regions, indicating recent hybridization events. As expected from previous studies, most hybrids resulted from ♀Q. ilex × ♂Q. suber crosses, but our data showed that the reciprocal cross is also possible. Partial independence between nuclear and chloroplastic introgression was observed in the two species. Nuclear introgression was limited in both species and both regions, with no preferred direction. In Provence, chloroplastic introgression was very rare in both species. Conversely, all Q. suber individuals from French Catalonia were introgressed by Q. ilex chlorotypes. This might be explained by introgression in the Iberian Peninsula antedating the first occurrence of the two species in French Catalonia. We also observed a new chlorotype that was created locally, and was exchanged between the two species. However, the two species still remain genetically differentiated. The dynamics and complexity of exchanges and the factors determining them (including human management of Q. suber) are discussed.</abstract><qualityIndicators><score>7.664</score><pdfVersion>1.3</pdfVersion><pdfPageSize>595.276 x 782.362 pts</pdfPageSize><refBibsNative>true</refBibsNative><abstractCharCount>1585</abstractCharCount><pdfWordCount>8812</pdfWordCount><pdfCharCount>57567</pdfCharCount><pdfPageCount>14</pdfPageCount><abstractWordCount>222</abstractWordCount></qualityIndicators><title>Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (Quercus suber L. and Q. ilex L.) in Southern France: inferring crosses and dynamics</title><refBibs><json:item><host><author></author><title>Arnold M.L. (1997) Natural Hybridization and Evolution. Oxford University Press, New York.</title></host></json:item><json:item><author><json:item><name>M.L. 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Wu</name></json:item></author><host><volume>14</volume><pages><last>865</last><first>851</first></pages><author></author><title>Journal of Evolutionary Biology</title></host><title>The genic view of the process of speciation</title></json:item></refBibs><genre><json:string>article</json:string></genre><host><volume>11</volume><publisherId><json:string>PLB</json:string></publisherId><pages><total>14</total><last>226</last><first>213</first></pages><issn><json:string>1435-8603</json:string></issn><issue>2</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><eissn><json:string>1438-8677</json:string></eissn><title>Plant Biology</title><doi><json:string>10.1111/(ISSN)1438-8677</json:string></doi></host><categories><wos><json:string>science</json:string><json:string>plant sciences</json:string></wos><scienceMetrix><json:string>natural sciences</json:string><json:string>biology</json:string><json:string>plant biology & botany</json:string></scienceMetrix></categories><publicationDate>2009</publicationDate><copyrightDate>2009</copyrightDate><doi><json:string>10.1111/j.1438-8677.2008.00106.x</json:string></doi><id>502C6F6957C48E913E4D3B37C54FCBA120272EE6</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/502C6F6957C48E913E4D3B37C54FCBA120272EE6/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/502C6F6957C48E913E4D3B37C54FCBA120272EE6/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/502C6F6957C48E913E4D3B37C54FCBA120272EE6/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (Quercus suber L. and Q. ilex L.) in Southern France: inferring crosses and dynamics</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><availability><p>© 2008 German Botanical Society and The Royal Botanical Society of the Netherlands</p></availability><date>2009</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (Quercus suber L. and Q. ilex L.) in Southern France: inferring crosses and dynamics</title><author xml:id="author-1"><persName><forename type="first">C.</forename><surname>Mir</surname></persName><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation></author><author xml:id="author-2"><persName><forename type="first">P.</forename><surname>Jarne</surname></persName><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation></author><author xml:id="author-3"><persName><forename type="first">V.</forename><surname>Sarda</surname></persName><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation></author><author xml:id="author-4"><persName><forename type="first">A.</forename><surname>Bonin</surname></persName><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation></author><author xml:id="author-5"><persName><forename type="first">R.</forename><surname>Lumaret</surname></persName><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation></author></analytic><monogr><title level="j">Plant Biology</title><idno type="pISSN">1435-8603</idno><idno type="eISSN">1438-8677</idno><idno type="DOI">10.1111/(ISSN)1438-8677</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2009-03"></date><biblScope unit="volume">11</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="213">213</biblScope><biblScope unit="page" to="226">226</biblScope></imprint></monogr><idno type="istex">502C6F6957C48E913E4D3B37C54FCBA120272EE6</idno><idno type="DOI">10.1111/j.1438-8677.2008.00106.x</idno><idno type="ArticleID">PLB106</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2009</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Gene flow is particularly frequent in the genus Quercus (oaks), especially between closely related species. We focus here on Quercus ilex and the cork‐producing Quercus suber, which occasionally hybridize although they are phylogenetically markedly separated. Morphological observations were combined with both allozymic and chloroplastic diagnostic markers to characterize hybridization and introgression and to infer their dynamics in two French regions (French Catalonia and Provence), which are separated by several hundred kilometres. Some hybrids were found in both regions, indicating recent hybridization events. As expected from previous studies, most hybrids resulted from ♀Q. ilex × ♂Q. suber crosses, but our data showed that the reciprocal cross is also possible. Partial independence between nuclear and chloroplastic introgression was observed in the two species. Nuclear introgression was limited in both species and both regions, with no preferred direction. In Provence, chloroplastic introgression was very rare in both species. Conversely, all Q. suber individuals from French Catalonia were introgressed by Q. ilex chlorotypes. This might be explained by introgression in the Iberian Peninsula antedating the first occurrence of the two species in French Catalonia. We also observed a new chlorotype that was created locally, and was exchanged between the two species. However, the two species still remain genetically differentiated. The dynamics and complexity of exchanges and the factors determining them (including human management of Q. suber) are discussed.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>Allozymes</term></item><item><term>cpDNA</term></item><item><term>genetic introgression</term></item><item><term>hybridization</term></item><item><term>Quercus</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2009-03">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/502C6F6957C48E913E4D3B37C54FCBA120272EE6/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Ltd</publisherName><publisherLoc>Oxford, UK</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1438-8677</doi><issn type="print">1435-8603</issn><issn type="electronic">1438-8677</issn><idGroup><id type="product" value="PLB"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="PLANT BIOLOGY">Plant Biology</title></titleGroup></publicationMeta><publicationMeta level="part" position="03002"><doi origin="wiley">10.1111/plb.2009.11.issue-2</doi><numberingGroup><numbering type="journalVolume" number="11">11</numbering><numbering type="journalIssue" number="2">2</numbering></numberingGroup><coverDate startDate="2009-03">March 2009</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="10" status="forIssue"><doi origin="wiley">10.1111/j.1438-8677.2008.00106.x</doi><idGroup><id type="unit" value="PLB106"></id></idGroup><countGroup><count type="pageTotal" number="14"></count></countGroup><titleGroup><title type="tocHeading1">RESEARCH PAPERS</title></titleGroup><copyright>© 2008 German Botanical Society and The Royal Botanical Society of the Netherlands</copyright><eventGroup><event type="firstOnline" date="2008-09-10"></event><event type="publishedOnlineFinalForm" date="2009-02-05"></event><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:2.3.2 mode:FullText source:FullText result:FullText" date="2010-03-03"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-02-07"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-11-03"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="213">213</numbering><numbering type="pageLast" number="226">226</numbering></numberingGroup><correspondenceTo>C. Mir, UMR de Génétique Végétale, INRA, Université Paris‐Sud, CNRS, AgroParisTech, Ferme du Moulon, 91190 Gif‐sur‐Yvette, France.
E‐mail: <email>mir@moulon.inra.fr</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:PLB.PLB106.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received: 6 March 2008; Accepted: 2 April 2008</unparsedEditorialHistory><countGroup><count type="figureTotal" number="2"></count><count type="tableTotal" number="6"></count></countGroup><titleGroup><title type="main">Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (<i>Quercus suber</i> L. and <i>Q. ilex</i> L.) in Southern France: inferring crosses and dynamics</title><title type="shortAuthors">Mir, Jarne, Sarda, Bonin & Lumaret</title><title type="short">Gene exchanges between <i>Q. suber</i> and <i>Q. ilex</i></title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#aff-1-1"><personName><givenNames>C.</givenNames><familyName>Mir</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#aff-1-1"><personName><givenNames>P.</givenNames><familyName>Jarne</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#aff-1-1"><personName><givenNames>V.</givenNames><familyName>Sarda</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#aff-1-1"><personName><givenNames>A.</givenNames><familyName>Bonin</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#aff-1-1"><personName><givenNames>R.</givenNames><familyName>Lumaret</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="aff-1-1" countryCode="FR"><unparsedAffiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">Allozymes</keyword><keyword xml:id="k2">cpDNA</keyword><keyword xml:id="k3">genetic introgression</keyword><keyword xml:id="k4">hybridization</keyword><keyword xml:id="k5"><i>Quercus</i></keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>Gene flow is particularly frequent in the genus <i>Quercus</i> (oaks), especially between closely related species. We focus here on <i>Quercus ilex</i> and the cork‐producing <i>Quercus suber</i>, which occasionally hybridize although they are phylogenetically markedly separated. Morphological observations were combined with both allozymic and chloroplastic diagnostic markers to characterize hybridization and introgression and to infer their dynamics in two French regions (French Catalonia and Provence), which are separated by several hundred kilometres. Some hybrids were found in both regions, indicating recent hybridization events. As expected from previous studies, most hybrids resulted from ♀<i>Q. ilex</i> × ♂<i>Q. suber</i> crosses, but our data showed that the reciprocal cross is also possible. Partial independence between nuclear and chloroplastic introgression was observed in the two species. Nuclear introgression was limited in both species and both regions, with no preferred direction. In Provence, chloroplastic introgression was very rare in both species. Conversely, all <i>Q. suber</i> individuals from French Catalonia were introgressed by <i>Q. ilex</i> chlorotypes. This might be explained by introgression in the Iberian Peninsula antedating the first occurrence of the two species in French Catalonia. We also observed a new chlorotype that was created locally, and was exchanged between the two species. However, the two species still remain genetically differentiated. The dynamics and complexity of exchanges and the factors determining them (including human management of <i>Q. suber</i>) are discussed.</p></abstract></abstractGroup></contentMeta><noteGroup><note xml:id="fn1" numbered="no"><p> <b>Editor</b>
F. Salamini</p></note></noteGroup></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (Quercus suber L. and Q. ilex L.) in Southern France: inferring crosses and dynamics</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Gene exchanges between Q. suber and Q. ilex</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Contrasting nuclear and cytoplasmic exchanges between phylogenetically distant oak species (Quercus suber L. and Q. ilex L.) in Southern France: inferring crosses and dynamics</title></titleInfo><name type="personal"><namePart type="given">C.</namePart><namePart type="family">Mir</namePart><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">P.</namePart><namePart type="family">Jarne</namePart><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">V.</namePart><namePart type="family">Sarda</namePart><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A.</namePart><namePart type="family">Bonin</namePart><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">R.</namePart><namePart type="family">Lumaret</namePart><affiliation>UMR 5175 Centre d’Ecologie Fonctionnelle et Evolutive, Centre National de la Recherche Scientifique, Montpellier, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2009-03</dateIssued><edition>Received: 6 March 2008; Accepted: 2 April 2008</edition><copyrightDate encoding="w3cdtf">2009</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">2</extent><extent unit="tables">6</extent></physicalDescription><abstract lang="en">Gene flow is particularly frequent in the genus Quercus (oaks), especially between closely related species. We focus here on Quercus ilex and the cork‐producing Quercus suber, which occasionally hybridize although they are phylogenetically markedly separated. Morphological observations were combined with both allozymic and chloroplastic diagnostic markers to characterize hybridization and introgression and to infer their dynamics in two French regions (French Catalonia and Provence), which are separated by several hundred kilometres. Some hybrids were found in both regions, indicating recent hybridization events. As expected from previous studies, most hybrids resulted from ♀Q. ilex × ♂Q. suber crosses, but our data showed that the reciprocal cross is also possible. Partial independence between nuclear and chloroplastic introgression was observed in the two species. Nuclear introgression was limited in both species and both regions, with no preferred direction. In Provence, chloroplastic introgression was very rare in both species. Conversely, all Q. suber individuals from French Catalonia were introgressed by Q. ilex chlorotypes. This might be explained by introgression in the Iberian Peninsula antedating the first occurrence of the two species in French Catalonia. We also observed a new chlorotype that was created locally, and was exchanged between the two species. However, the two species still remain genetically differentiated. The dynamics and complexity of exchanges and the factors determining them (including human management of Q. suber) are discussed.</abstract><subject lang="en"><genre>keywords</genre><topic>Allozymes</topic><topic>cpDNA</topic><topic>genetic introgression</topic><topic>hybridization</topic><topic>Quercus</topic></subject><relatedItem type="host"><titleInfo><title>Plant Biology</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">1435-8603</identifier><identifier type="eISSN">1438-8677</identifier><identifier type="DOI">10.1111/(ISSN)1438-8677</identifier><identifier type="PublisherID">PLB</identifier><part><date>2009</date><detail type="volume"><caption>vol.</caption><number>11</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>213</start><end>226</end><total>14</total></extent></part></relatedItem><identifier type="istex">502C6F6957C48E913E4D3B37C54FCBA120272EE6</identifier><identifier type="DOI">10.1111/j.1438-8677.2008.00106.x</identifier><identifier type="ArticleID">PLB106</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2008 German Botanical Society and The Royal Botanical Society of the Netherlands</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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