Natural hybrids in Atlantic eels (Anguilla anguilla, A. rostrata): evidence for successful reproduction and fluctuating abundance in space and time
Identifieur interne : 001161 ( Istex/Curation ); précédent : 001160; suivant : 001162Natural hybrids in Atlantic eels (Anguilla anguilla, A. rostrata): evidence for successful reproduction and fluctuating abundance in space and time
Auteurs : Vicky Albert ; Bjarni J Nsson ; Louis BernatchezSource :
- Molecular Ecology [ 0962-1083 ] ; 2006-06.
Descripteurs français
- Wicri :
- topic : Anguilla.
English descriptors
- KwdEn :
Abstract
The outcome of natural hybridization is highly variable and depends on the nonexclusive effects of both pre‐ and post‐mating reproductive barriers. The objective of this study was to address three specific questions regarding the dynamics of hybridization between the American and European eels (Anguilla rostrata and Anguilla anguilla). Using 373 AFLP loci, 1127 eels were genotyped, representing different life stages from both continents, as well as multiple Icelandic locations. We first evaluated the extent of hybridization and tested for the occurrence of hybrids beyond the first generation. Second, we tested whether hybrids were randomly distributed across continents and among Icelandic sampling sites. Third, we tested for a difference in the proportion of hybrids between glass eel and yellow eel stages in Iceland. Our results provided evidence for (i) an overall hybrid proportion of 15.5% in Iceland, with values ranging from 6.7% to 100% depending on life stages and locations; (ii) the existence of hybrids beyond the first generation; (iii) a nonrandom geographic distribution of hybrids in the North Atlantic; and (iv) a higher proportion of first and later generation hybrids in yellow eels compared to glass eels, as well as a significant latitudinal gradient in the proportion of hybrids in Icelandic freshwater. We propose that the combined effect of both differential survival of hybrids and variation in hybridization rate through time best explain these patterns. We discuss the possibility that climate change, which is impacting many environmental features in the North Atlantic, may have a determinant effect on the outcome of natural hybridization in Atlantic eels.
Url:
DOI: 10.1111/j.1365-294X.2006.02917.x
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: Pour aller vers cette notice dans l'étape Curation :001161
Links to Exploration step
ISTEX:5AFEBA3FB1F06F813BEE70BE2E8458A65F7E76C7Curation
No country items
Vicky Albert<affiliation><mods:affiliation>Québec‐Océan, Département de Biologie, Université Laval, Québec, Canada G1K 7P4,</mods:affiliation>
<wicri:noCountry code="subField"></wicri:noCountry>
</affiliation>
<affiliation><mods:affiliation>Institute of Freshwater Fisheries, Northern Division, Sauárkrókur, Iceland, IS 550</mods:affiliation>
<wicri:noCountry code="subField">550</wicri:noCountry>
</affiliation>
<affiliation><mods:affiliation>Québec‐Océan, Département de Biologie, Université Laval, Québec, Canada G1K 7P4,</mods:affiliation>
<wicri:noCountry code="subField"></wicri:noCountry>
</affiliation>
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Natural hybrids in Atlantic eels (Anguilla anguilla, A. rostrata): evidence for successful reproduction and fluctuating abundance in space and time</title>
<author><name sortKey="Albert, Vicky" sort="Albert, Vicky" uniqKey="Albert V" first="Vicky" last="Albert">Vicky Albert</name>
<affiliation><mods:affiliation>Québec‐Océan, Département de Biologie, Université Laval, Québec, Canada G1K 7P4,</mods:affiliation>
<wicri:noCountry code="subField"></wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="J Nsson, Bjarni" sort="J Nsson, Bjarni" uniqKey="J Nsson B" first="Bjarni" last="J Nsson">Bjarni J Nsson</name>
<affiliation><mods:affiliation>Institute of Freshwater Fisheries, Northern Division, Sauárkrókur, Iceland, IS 550</mods:affiliation>
<wicri:noCountry code="subField">550</wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="Bernatchez, Louis" sort="Bernatchez, Louis" uniqKey="Bernatchez L" first="Louis" last="Bernatchez">Louis Bernatchez</name>
<affiliation><mods:affiliation>Québec‐Océan, Département de Biologie, Université Laval, Québec, Canada G1K 7P4,</mods:affiliation>
<wicri:noCountry code="subField"></wicri:noCountry>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:5AFEBA3FB1F06F813BEE70BE2E8458A65F7E76C7</idno>
<date when="2006" year="2006">2006</date>
<idno type="doi">10.1111/j.1365-294X.2006.02917.x</idno>
<idno type="url">https://api.istex.fr/document/5AFEBA3FB1F06F813BEE70BE2E8458A65F7E76C7/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">001161</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001161</idno>
<idno type="wicri:Area/Istex/Curation">001161</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Natural hybrids in Atlantic eels (Anguilla anguilla, A. rostrata): evidence for successful reproduction and fluctuating abundance in space and time</title>
<author><name sortKey="Albert, Vicky" sort="Albert, Vicky" uniqKey="Albert V" first="Vicky" last="Albert">Vicky Albert</name>
<affiliation><mods:affiliation>Québec‐Océan, Département de Biologie, Université Laval, Québec, Canada G1K 7P4,</mods:affiliation>
<wicri:noCountry code="subField"></wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="J Nsson, Bjarni" sort="J Nsson, Bjarni" uniqKey="J Nsson B" first="Bjarni" last="J Nsson">Bjarni J Nsson</name>
<affiliation><mods:affiliation>Institute of Freshwater Fisheries, Northern Division, Sauárkrókur, Iceland, IS 550</mods:affiliation>
<wicri:noCountry code="subField">550</wicri:noCountry>
</affiliation>
</author>
<author><name sortKey="Bernatchez, Louis" sort="Bernatchez, Louis" uniqKey="Bernatchez L" first="Louis" last="Bernatchez">Louis Bernatchez</name>
<affiliation><mods:affiliation>Québec‐Océan, Département de Biologie, Université Laval, Québec, Canada G1K 7P4,</mods:affiliation>
<wicri:noCountry code="subField"></wicri:noCountry>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Molecular Ecology</title>
<idno type="ISSN">0962-1083</idno>
<idno type="eISSN">1365-294X</idno>
<imprint><publisher>Blackwell Publishing Ltd</publisher>
<pubPlace>Oxford, UK</pubPlace>
<date type="published" when="2006-06">2006-06</date>
<biblScope unit="volume">15</biblScope>
<biblScope unit="issue">7</biblScope>
<biblScope unit="page" from="1903">1903</biblScope>
<biblScope unit="page" to="1916">1916</biblScope>
</imprint>
<idno type="ISSN">0962-1083</idno>
</series>
<idno type="istex">5AFEBA3FB1F06F813BEE70BE2E8458A65F7E76C7</idno>
<idno type="DOI">10.1111/j.1365-294X.2006.02917.x</idno>
<idno type="ArticleID">MEC2917</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0962-1083</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>AFLP</term>
<term>Anguilla</term>
<term>climate changes</term>
<term>fitness</term>
<term>hybrid zone</term>
<term>hybridization</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Anguilla</term>
</keywords>
</textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">The outcome of natural hybridization is highly variable and depends on the nonexclusive effects of both pre‐ and post‐mating reproductive barriers. The objective of this study was to address three specific questions regarding the dynamics of hybridization between the American and European eels (Anguilla rostrata and Anguilla anguilla). Using 373 AFLP loci, 1127 eels were genotyped, representing different life stages from both continents, as well as multiple Icelandic locations. We first evaluated the extent of hybridization and tested for the occurrence of hybrids beyond the first generation. Second, we tested whether hybrids were randomly distributed across continents and among Icelandic sampling sites. Third, we tested for a difference in the proportion of hybrids between glass eel and yellow eel stages in Iceland. Our results provided evidence for (i) an overall hybrid proportion of 15.5% in Iceland, with values ranging from 6.7% to 100% depending on life stages and locations; (ii) the existence of hybrids beyond the first generation; (iii) a nonrandom geographic distribution of hybrids in the North Atlantic; and (iv) a higher proportion of first and later generation hybrids in yellow eels compared to glass eels, as well as a significant latitudinal gradient in the proportion of hybrids in Icelandic freshwater. We propose that the combined effect of both differential survival of hybrids and variation in hybridization rate through time best explain these patterns. We discuss the possibility that climate change, which is impacting many environmental features in the North Atlantic, may have a determinant effect on the outcome of natural hybridization in Atlantic eels.</div>
</front>
</TEI>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Bois/explor/CheneBelgiqueV1/Data/Istex/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001161 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Curation/biblio.hfd -nk 001161 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Bois |area= CheneBelgiqueV1 |flux= Istex |étape= Curation |type= RBID |clé= ISTEX:5AFEBA3FB1F06F813BEE70BE2E8458A65F7E76C7 |texte= Natural hybrids in Atlantic eels (Anguilla anguilla, A. rostrata): evidence for successful reproduction and fluctuating abundance in space and time }}
![]() | This area was generated with Dilib version V0.6.27. | ![]() |