Phylogeography and conservation genetics of endangered European Margaritiferidae (Bivalvia: Unionoidea)
Identifieur interne : 001243 ( Main/Merge ); précédent : 001242; suivant : 001244Phylogeography and conservation genetics of endangered European Margaritiferidae (Bivalvia: Unionoidea)
Auteurs : Annie Machordom [Pays-Bas, Espagne] ; Rafael Araujo [Espagne] ; Dirk Erpenbeck [Pays-Bas, Espagne] ; María-Ángeles Ramos [Espagne]Source :
- Biological Journal of the Linnean Society [ 0024-4066 ] ; 2003-02.
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Abstract
Margaritifera margaritifera and M. auricularia are among the most endangered freshwater mussels in the world, and the only species of the genus found in Europe. Our genetic study explores allozymic variability (27 loci) and differentiation at the mitochondrial sequence level (partial COI and 16S rRNA gene sequences). The Spanish M. auricularia population showed genetic parameters of variation that were of the same order as those of other freshwater molluscs (though at the lower end of the range), probably permitting its potential recovery. The difference between this species and M. margaritifera was clearly established (ten diagnostic allozymic loci, Nei = 0.462, and mean nucleotide divergence around 9.4%). The M. margaritifera populations analysed showed a certain degree of population genetic structure (according to allozyme data) that was not, however, related to a geographical cline. Nevertheless, two mitochondrial lineages (albeit very closely related) were identified: a northern lineage extending from Ireland to the Kola Peninsula including the western Atlantic coast, and a second cluster distributed from Ireland to the Iberian Peninsula. The phylogenetic relationships between these two species and other related taxa were established. The putative M. m. durrovensis could be considered an ‘ecophenotype’. Palaeobiogeographical scenarios are presented and indicate unexpected ‘recent’ gene flow between M. margaritifera populations that were theoretically isolated in the early Tertiary. © 2003 The Linnean Society of London, Biological Journal of the Linnean Society 2003, 78, 235–252.
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DOI: 10.1046/j.1095-8312.2003.00158.x
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E‐mail: Current address: Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, PO Box 94766, 1090 GT Amsterdam</wicri:regionArea><orgName type="university">Université d'Amsterdam</orgName><placeName><settlement type="city">Amsterdam</settlement><region>Hollande-Septentrionale</region></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Espagne</country></affiliation></author><author><name sortKey="Araujo, Rafael" sort="Araujo, Rafael" uniqKey="Araujo R" first="Rafael" last="Araujo">Rafael Araujo</name><affiliation wicri:level="2"><country xml:lang="fr">Espagne</country><wicri:regionArea>Museo Nacional de Ciencias Naturales, José Gutiérrez Abascal 2, 28006 Madrid</wicri:regionArea><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author><author><name sortKey="Erpenbeck, Dirk" sort="Erpenbeck, Dirk" uniqKey="Erpenbeck D" first="Dirk" last="Erpenbeck">Dirk Erpenbeck</name><affiliation wicri:level="4"><country xml:lang="fr" wicri:curation="lc">Pays-Bas</country><wicri:regionArea>Corresponding author. E‐mail: Current address: Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, PO Box 94766, 1090 GT Amsterdam</wicri:regionArea><orgName type="university">Université d'Amsterdam</orgName><placeName><settlement type="city">Amsterdam</settlement><region>Hollande-Septentrionale</region></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Espagne</country></affiliation></author><author><name sortKey="Ramos, Maria Geles" sort="Ramos, Maria Geles" uniqKey="Ramos M" first="María-Ángeles" last="Ramos">María-Ángeles Ramos</name><affiliation wicri:level="2"><country xml:lang="fr">Espagne</country><wicri:regionArea>Museo Nacional de Ciencias Naturales, José Gutiérrez Abascal 2, 28006 Madrid</wicri:regionArea><placeName><region nuts="2" type="communauté">Communauté de Madrid</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Biological Journal of the Linnean Society</title><idno type="ISSN">0024-4066</idno><idno type="eISSN">1095-8312</idno><imprint><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2003-02">2003-02</date><biblScope unit="volume">78</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="235">235</biblScope><biblScope unit="page" to="252">252</biblScope></imprint><idno type="ISSN">0024-4066</idno></series><idno type="istex">2925CDE5EB8D4583F472C75E39A3DA8B73FBBBE5</idno><idno type="DOI">10.1046/j.1095-8312.2003.00158.x</idno><idno type="ArticleID">BIJ158</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0024-4066</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>16S rRNA</term><term>COI</term><term>Margaritifera</term><term>allozymes</term><term>freshwater mussels</term><term>genetic variation</term><term>mtDNA</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Margaritifera margaritifera and M. auricularia are among the most endangered freshwater mussels in the world, and the only species of the genus found in Europe. Our genetic study explores allozymic variability (27 loci) and differentiation at the mitochondrial sequence level (partial COI and 16S rRNA gene sequences). The Spanish M. auricularia population showed genetic parameters of variation that were of the same order as those of other freshwater molluscs (though at the lower end of the range), probably permitting its potential recovery. The difference between this species and M. margaritifera was clearly established (ten diagnostic allozymic loci, Nei = 0.462, and mean nucleotide divergence around 9.4%). The M. margaritifera populations analysed showed a certain degree of population genetic structure (according to allozyme data) that was not, however, related to a geographical cline. Nevertheless, two mitochondrial lineages (albeit very closely related) were identified: a northern lineage extending from Ireland to the Kola Peninsula including the western Atlantic coast, and a second cluster distributed from Ireland to the Iberian Peninsula. The phylogenetic relationships between these two species and other related taxa were established. The putative M. m. durrovensis could be considered an ‘ecophenotype’. Palaeobiogeographical scenarios are presented and indicate unexpected ‘recent’ gene flow between M. margaritifera populations that were theoretically isolated in the early Tertiary. © 2003 The Linnean Society of London, Biological Journal of the Linnean Society 2003, 78, 235–252.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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