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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Pollen dispersal and gene flow within and into a population of the alpine monocarpic plant <italic>Campanula thyrsoides</italic>
</title>
<author><name sortKey="Scheepens, J F" sort="Scheepens, J F" uniqKey="Scheepens J" first="J. F." last="Scheepens">J. F. Scheepens</name>
</author>
<author><name sortKey="Frei, Eva S" sort="Frei, Eva S" uniqKey="Frei E" first="Eva S." last="Frei">Eva S. Frei</name>
</author>
<author><name sortKey="Armbruster, Georg F J" sort="Armbruster, Georg F J" uniqKey="Armbruster G" first="Georg F. J." last="Armbruster">Georg F. J. Armbruster</name>
</author>
<author><name sortKey="Stocklin, Jurg" sort="Stocklin, Jurg" uniqKey="Stocklin J" first="Jürg" last="Stöcklin">Jürg Stöcklin</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">22718086</idno>
<idno type="pmc">3489145</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3489145</idno>
<idno type="RBID">PMC:3489145</idno>
<idno type="doi">10.1093/aob/mcs131</idno>
<date when="2012">2012</date>
<idno type="wicri:Area/Pmc/Corpus">000128</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000128</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Pollen dispersal and gene flow within and into a population of the alpine monocarpic plant <italic>Campanula thyrsoides</italic>
</title>
<author><name sortKey="Scheepens, J F" sort="Scheepens, J F" uniqKey="Scheepens J" first="J. F." last="Scheepens">J. F. Scheepens</name>
</author>
<author><name sortKey="Frei, Eva S" sort="Frei, Eva S" uniqKey="Frei E" first="Eva S." last="Frei">Eva S. Frei</name>
</author>
<author><name sortKey="Armbruster, Georg F J" sort="Armbruster, Georg F J" uniqKey="Armbruster G" first="Georg F. J." last="Armbruster">Georg F. J. Armbruster</name>
</author>
<author><name sortKey="Stocklin, Jurg" sort="Stocklin, Jurg" uniqKey="Stocklin J" first="Jürg" last="Stöcklin">Jürg Stöcklin</name>
</author>
</analytic>
<series><title level="j">Annals of Botany</title>
<idno type="ISSN">0305-7364</idno>
<idno type="eISSN">1095-8290</idno>
<imprint><date when="2012">2012</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><sec><title>Background and Aims</title>
<p>Gene flow by seed and pollen largely shapes the genetic structure within and among plant populations. Seed dispersal is often strongly spatially restricted, making gene flow primarily dependent on pollen dispersal within and into populations. To understand distance-dependent pollination success, pollen dispersal and gene flow were studied within and into a population of the alpine monocarpic perennial <italic>Campanula thyrsoides</italic>
.</p>
</sec>
<sec><title>Methods</title>
<p>A paternity analysis was performed on sampled seed families using microsatellites, genotyping 22 flowering adults and 331 germinated offspring to estimate gene flow, and pollen analogues were used to estimate pollen dispersal. The focal population was situated among 23 genetically differentiated populations on a subalpine mountain plateau (<10 km<sup>2</sup>
) in central Switzerland.</p>
</sec>
<sec><title>Key Results</title>
<p>Paternity analysis assigned 110 offspring (33·2 %) to a specific pollen donor (i.e. ‘father’) in the focal population. Mean pollination distance was 17·4 m for these offspring, and the pollen dispersal curve based on positive LOD scores of all 331 offspring was strongly decreasing with distance. The paternal contribution from 20–35 offspring (6·0–10·5 %) originated outside the population, probably from nearby populations on the plateau. Multiple potential fathers were assigned to each of 186 offspring (56·2 %). The pollination distance to ‘mother’ plants was negatively affected by the mothers' degree of spatial isolation in the population. Variability in male mating success was not related to the degree of isolation of father plants.</p>
</sec>
<sec><title>Conclusions</title>
<p>Pollen dispersal patterns within the <italic>C. thyrsoides</italic>
population are affected by spatial positioning of flowering individuals and pollen dispersal may therefore contribute to the course of evolution of populations of this species. Pollen dispersal into the population was high but apparently not strong enough to prevent the previously described substantial among-population differentiation on the plateau, which may be due to the monocarpic perenniality of this species.</p>
</sec>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Ann Bot</journal-id>
<journal-id journal-id-type="iso-abbrev">Ann. Bot</journal-id>
<journal-id journal-id-type="publisher-id">annbot</journal-id>
<journal-id journal-id-type="hwp">annbot</journal-id>
<journal-title-group><journal-title>Annals of Botany</journal-title>
</journal-title-group>
<issn pub-type="ppub">0305-7364</issn>
<issn pub-type="epub">1095-8290</issn>
<publisher><publisher-name>Oxford University Press</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">22718086</article-id>
<article-id pub-id-type="pmc">3489145</article-id>
<article-id pub-id-type="doi">10.1093/aob/mcs131</article-id>
<article-id pub-id-type="publisher-id">mcs131</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Articles</subject>
</subj-group>
</article-categories>
<title-group><article-title>Pollen dispersal and gene flow within and into a population of the alpine monocarpic plant <italic>Campanula thyrsoides</italic>
</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Scheepens</surname>
<given-names>J. F.</given-names>
</name>
<xref ref-type="corresp" rid="cor1">*</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Frei</surname>
<given-names>Eva S.</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Armbruster</surname>
<given-names>Georg F. J.</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Stöcklin</surname>
<given-names>Jürg</given-names>
</name>
</contrib>
</contrib-group>
<aff><addr-line>Section of Plant Ecology, Institute of Botany, University of Basel, Schönbeinstrasse 6, CH-4056 Basel, Switzerland</addr-line>
</aff>
<author-notes><corresp id="cor1"><label>*</label>
For correspondence. Present address: Section of Ecology, Department of Biology, University of Turku, FIN-20014, Turku, Finland. E-mail <email>jofrsc@utu.fi</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><month>11</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub"><day>20</day>
<month>6</month>
<year>2012</year>
</pub-date>
<volume>110</volume>
<issue>7</issue>
<issue-title>Special Issue: Plant Population Biology</issue-title>
<fpage>1479</fpage>
<lpage>1488</lpage>
<history><date date-type="received"><day>29</day>
<month>2</month>
<year>2012</year>
</date>
<date date-type="rev-request"><day>22</day>
<month>3</month>
<year>2012</year>
</date>
<date date-type="accepted"><day>20</day>
<month>4</month>
<year>2012</year>
</date>
</history>
<permissions><copyright-statement>© The Author 2012. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com</copyright-statement>
<copyright-year>2012</copyright-year>
</permissions>
<self-uri content-type="pdf" xlink:type="simple" xlink:href="mcs131.pdf"></self-uri>
<abstract><sec><title>Background and Aims</title>
<p>Gene flow by seed and pollen largely shapes the genetic structure within and among plant populations. Seed dispersal is often strongly spatially restricted, making gene flow primarily dependent on pollen dispersal within and into populations. To understand distance-dependent pollination success, pollen dispersal and gene flow were studied within and into a population of the alpine monocarpic perennial <italic>Campanula thyrsoides</italic>
.</p>
</sec>
<sec><title>Methods</title>
<p>A paternity analysis was performed on sampled seed families using microsatellites, genotyping 22 flowering adults and 331 germinated offspring to estimate gene flow, and pollen analogues were used to estimate pollen dispersal. The focal population was situated among 23 genetically differentiated populations on a subalpine mountain plateau (<10 km<sup>2</sup>
) in central Switzerland.</p>
</sec>
<sec><title>Key Results</title>
<p>Paternity analysis assigned 110 offspring (33·2 %) to a specific pollen donor (i.e. ‘father’) in the focal population. Mean pollination distance was 17·4 m for these offspring, and the pollen dispersal curve based on positive LOD scores of all 331 offspring was strongly decreasing with distance. The paternal contribution from 20–35 offspring (6·0–10·5 %) originated outside the population, probably from nearby populations on the plateau. Multiple potential fathers were assigned to each of 186 offspring (56·2 %). The pollination distance to ‘mother’ plants was negatively affected by the mothers' degree of spatial isolation in the population. Variability in male mating success was not related to the degree of isolation of father plants.</p>
</sec>
<sec><title>Conclusions</title>
<p>Pollen dispersal patterns within the <italic>C. thyrsoides</italic>
population are affected by spatial positioning of flowering individuals and pollen dispersal may therefore contribute to the course of evolution of populations of this species. Pollen dispersal into the population was high but apparently not strong enough to prevent the previously described substantial among-population differentiation on the plateau, which may be due to the monocarpic perenniality of this species.</p>
</sec>
</abstract>
<kwd-group><kwd>Gene flow</kwd>
<kwd>pollen dispersal</kwd>
<kwd><italic>Campanula thyrsoides</italic>
</kwd>
<kwd>European Alps</kwd>
<kwd>male mating success</kwd>
<kwd>monocarpic perenniality</kwd>
<kwd>paternity analysis</kwd>
<kwd>pollen analogues</kwd>
<kwd>pollination distance</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>
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