CheneBelgiqueV2, Ncbi, Merge, bibRecord, 000057

Rapid loss of genetic variation in a founding population of Primula elatior (Primulaceae) after colonization

Identifieur interne : 000057 ( Ncbi/Merge ); précédent : 000056; suivant : 000058

Rapid loss of genetic variation in a founding population of Primula elatior (Primulaceae) after colonization

Auteurs : Hans Jacquemyn [Belgique] ; Katrien Vandepitte [Belgique] ; Isabel Roldán-Ruiz [Belgique] ; Olivier Honnay [Belgique]

Source :

Annals of Botany [ 0305-7364 ] ; 2008.

RBID : PMC:2707865

Abstract

Background and Aims

Land-use changes and associated extinction/colonization dynamics can have a large impact on population genetic diversity of plant species. The aim of this study was to investigate genetic diversity in a founding population of the self-incompatible forest herb Primula elatior and to elucidate the processes that affect genetic diversity shortly after colonization.

Methods

AFLP markers were used to analyse genetic diversity across three age classes and spatial genetic structure within a founding population of P. elatior in a recently established stand in central Belgium. Parentage analyses were used to assess the amount of gene flow from outside the population and to investigate the contribution of mother plants to future generations.

Results

The genetic diversity of second and third generation plants was significantly reduced compared with that of first generation plants. Significant spatial genetic structure was observed. Parentage analyses showed that <20 % of the youngest individuals originated from parents outside the study population and that >50 % of first and second generation plants did not contribute to seedling recruitment.

Conclusions

These results suggest that a small effective population size and genetic drift can lead to rapid decline of genetic diversity of offspring in founding populations shortly after colonization. This multigenerational study also highlights that considerable amounts of gene flow seem to be required to counterbalance genetic drift and to sustain high levels of genetic diversity after colonization in recently established stands.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2707865

DOI: 10.1093/aob/mcn253
PubMed: 19106180
PubMed Central: 2707865

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Le document en format XML

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 (Primulaceae) after colonization</title>
<author><name sortKey="Jacquemyn, Hans" sort="Jacquemyn, Hans" uniqKey="Jacquemyn H" first="Hans" last="Jacquemyn">Hans Jacquemyn</name>
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,<institution>University of Leuven</institution>
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<country xml:lang="fr">Belgique</country>
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<front><div type="abstract" xml:lang="en"><sec><title>Background and Aims</title>
<p>Land-use changes and associated extinction/colonization dynamics can have a large impact on population genetic diversity of plant species. The aim of this study was to investigate genetic diversity in a founding population of the self-incompatible forest herb <italic>Primula elatior</italic>
 and to elucidate the processes that affect genetic diversity shortly after colonization.</p>
</sec>
<sec><title>Methods</title>
<p>AFLP markers were used to analyse genetic diversity across three age classes and spatial genetic structure within a founding population of <italic>P. elatior</italic>
 in a recently established stand in central Belgium. Parentage analyses were used to assess the amount of gene flow from outside the population and to investigate the contribution of mother plants to future generations.</p>
</sec>
<sec><title>Results</title>
<p>The genetic diversity of second and third generation plants was significantly reduced compared with that of first generation plants. Significant spatial genetic structure was observed. Parentage analyses showed that <20 % of the youngest individuals originated from parents outside the study population and that >50 % of first and second generation plants did not contribute to seedling recruitment.</p>
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<sec><title>Conclusions</title>
<p>These results suggest that a small effective population size and genetic drift can lead to rapid decline of genetic diversity of offspring in founding populations shortly after colonization. This multigenerational study also highlights that considerable amounts of gene flow seem to be required to counterbalance genetic drift and to sustain high levels of genetic diversity after colonization in recently established stands.</p>
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  <front><journal-meta><journal-id journal-id-type="nlm-ta">Ann Bot</journal-id>
<journal-id journal-id-type="publisher-id">annbot</journal-id>
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<article-categories><subj-group subj-group-type="heading"><subject>Original Articles</subject>
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<title-group><article-title>Rapid loss of genetic variation in a founding population of <italic>Primula elatior</italic>
 (Primulaceae) after colonization</article-title>
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<contrib-group><contrib contrib-type="author"><name><surname>Jacquemyn</surname>
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<contrib contrib-type="author"><name><surname>Roldán-Ruiz</surname>
<given-names>Isabel</given-names>
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<contrib contrib-type="author"><name><surname>Honnay</surname>
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,<addr-line>Caritasstraat 21, B-9090 Melle</addr-line>
,<country>Belgium</country>
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<author-notes><corresp id="cor1"><label>*</label>
For correspondence. E-mail <email>hans.jacquemyn@bio.kuleuven.be</email>
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</author-notes>
<pub-date pub-type="ppub"><month>3</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub"><day>23</day>
<month>12</month>
<year>2008</year>
</pub-date>
<volume>103</volume>
<issue>5</issue>
<fpage>777</fpage>
<lpage>783</lpage>
<history><date date-type="received"><day>26</day>
<month>8</month>
<year>2008</year>
</date>
<date date-type="rev-recd"><day>30</day>
<month>10</month>
<year>2008</year>
</date>
<date date-type="accepted"><day>13</day>
<month>11</month>
<year>2008</year>
</date>
</history>
<permissions><copyright-statement>© The Author 2008. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org</copyright-statement>
</permissions>
<abstract><sec><title>Background and Aims</title>
<p>Land-use changes and associated extinction/colonization dynamics can have a large impact on population genetic diversity of plant species. The aim of this study was to investigate genetic diversity in a founding population of the self-incompatible forest herb <italic>Primula elatior</italic>
 and to elucidate the processes that affect genetic diversity shortly after colonization.</p>
</sec>
<sec><title>Methods</title>
<p>AFLP markers were used to analyse genetic diversity across three age classes and spatial genetic structure within a founding population of <italic>P. elatior</italic>
 in a recently established stand in central Belgium. Parentage analyses were used to assess the amount of gene flow from outside the population and to investigate the contribution of mother plants to future generations.</p>
</sec>
<sec><title>Results</title>
<p>The genetic diversity of second and third generation plants was significantly reduced compared with that of first generation plants. Significant spatial genetic structure was observed. Parentage analyses showed that <20 % of the youngest individuals originated from parents outside the study population and that >50 % of first and second generation plants did not contribute to seedling recruitment.</p>
</sec>
<sec><title>Conclusions</title>
<p>These results suggest that a small effective population size and genetic drift can lead to rapid decline of genetic diversity of offspring in founding populations shortly after colonization. This multigenerational study also highlights that considerable amounts of gene flow seem to be required to counterbalance genetic drift and to sustain high levels of genetic diversity after colonization in recently established stands.</p>
</sec>
</abstract>
<kwd-group><title>Key words</title>
<kwd>AFLP</kwd>
<kwd>colonization</kwd>
<kwd>forest regeneration</kwd>
<kwd>genetic diversity</kwd>
<kwd>genetic drift</kwd>
<kwd>parentage analysis</kwd>
<kwd>spatial genetic structure</kwd>
</kwd-group>
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<name sortKey="Honnay, Olivier" sort="Honnay, Olivier" uniqKey="Honnay O" first="Olivier" last="Honnay">Olivier Honnay</name>
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Rapid loss of genetic variation in a founding population of Primula elatior (Primulaceae) after colonization

Rapid loss of genetic variation in a founding population of Primula elatior (Primulaceae) after colonization

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Abstract

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