HOLARCTIC PHYLOGEOGRAPHY OF ARCTIC CHARR (SALVELINUS ALPINUS L.) INFERRED FROM MITOCHONDRIAL DNA SEQUENCES
Identifieur interne : 001374 ( Istex/Curation ); précédent : 001373; suivant : 001375HOLARCTIC PHYLOGEOGRAPHY OF ARCTIC CHARR (SALVELINUS ALPINUS L.) INFERRED FROM MITOCHONDRIAL DNA SEQUENCES
Auteurs : Patrick C. Brunner [Suisse, Canada] ; Marlis R. Douglas [Suisse] ; Alexander Osinov [Russie] ; Chris C. Wilson [Canada] ; Louis Bernatchez [Canada]Source :
- Evolution [ 0014-3820 ] ; 2001-03.
English descriptors
Abstract
Abstract This study evaluated mitochondrial DNA (mtDNA) sequence variation in a 552‐bp fragment of the control region of Arctic charr (Salvelinus alpinus) by analyzing 159 individuals from 83 populations throughout the entire range of the complex. A total of 89 (16.1%) nucleotide positions were polymorphic, and these defined 63 haplotypes. Phylogenetic analyses supported the monophyly of the complex and assigned the observed haplotypes to five geographic regions that may be associated with different glacial refugia. Most notably, a formerly defined major evolutionary lineage (S. a. erythrinus) ranging from North America across the Arctic archipelago to the Eurasian continent has now been partitioned into the Arctic group and the newly identified Siberian group. The Beringian group, formed entirely by specimens assigned to S. malma (Dolly Varden), encompassed the area formerly assigned to S. a. taranetzi. The latter, due to a unique haplotype, became the basal member of the Arctic group. Overall, the S. alpinus complex reflects divergent evolutionary groups coupled with shallow intergroup differentiation, also indicated by an analysis of molecular variance that attributed 73.7% (P < 0.001) of the total genetic variance among groups. Time estimates, based on sequence divergence, suggest a separation of the major phylogeographic groups during early to mid‐Pleistocene. In contrast, colonization of most of today's range started relatively recently, most likely late Pleistocene during the last retreat of ice sheets some 10,000–20,000 years ago. This time scale obviously is too shallow for detecting significant variation on a smaller scale using mtDNA markers. However, other studies using nuclear microsatellite DNA variation strongly suggested ongoing evolution within groups by revealing strong population‐genetic substructuring and restricted gene flow among populations. Thus, Arctic charr could serve as a model organism to investigate the linkage between historical and contemporary components of phylogeographic structuring in fish, and, with a global perspective of the distribution of genetic variation as a framework, meaningful comparisons of charr studies at a smaller geographic scale will now be possible.
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DOI: 10.1111/j.0014-3820.2001.tb00790.x
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Brunner</name><affiliation wicri:level="1"><mods:affiliation>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4</wicri:regionArea></affiliation></author><author><name sortKey="Douglas, Marlis R" sort="Douglas, Marlis R" uniqKey="Douglas M" first="Marlis R." last="Douglas">Marlis R. Douglas</name><affiliation wicri:level="1"><mods:affiliation>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich</wicri:regionArea></affiliation></author><author><name sortKey="Osinov, Alexander" sort="Osinov, Alexander" uniqKey="Osinov A" first="Alexander" last="Osinov">Alexander Osinov</name><affiliation wicri:level="1"><mods:affiliation>Department of Ichthyology, Moscow State University, Moscow, 119899, Russia</mods:affiliation><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Ichthyology, Moscow State University, Moscow, 119899</wicri:regionArea></affiliation></author><author><name sortKey="Wilson, Chris C" sort="Wilson, Chris C" uniqKey="Wilson C" first="Chris C." last="Wilson">Chris C. Wilson</name><affiliation wicri:level="1"><mods:affiliation>Ontario Ministry of Natural Resources, Aquatic Ecosystems Science Section, Trent University, Peterborough Ontario, K9J 8N8, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Ontario Ministry of Natural Resources, Aquatic Ecosystems Science Section, Trent University, Peterborough Ontario, K9J 8N8</wicri:regionArea></affiliation></author><author><name sortKey="Bernatchez, Louis" sort="Bernatchez, Louis" uniqKey="Bernatchez L" first="Louis" last="Bernatchez">Louis Bernatchez</name><affiliation wicri:level="1"><mods:affiliation>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:39BD324AA62210237F622446FA0FD4A33FBF7D68</idno><date when="2001" year="2001">2001</date><idno type="doi">10.1111/j.0014-3820.2001.tb00790.x</idno><idno type="url">https://api.istex.fr/document/39BD324AA62210237F622446FA0FD4A33FBF7D68/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001376</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001376</idno><idno type="wicri:Area/Istex/Curation">001374</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">HOLARCTIC PHYLOGEOGRAPHY OF ARCTIC CHARR (SALVELINUS ALPINUS L.) INFERRED FROM MITOCHONDRIAL DNA SEQUENCES</title><author><name sortKey="Brunner, Patrick C" sort="Brunner, Patrick C" uniqKey="Brunner P" first="Patrick C." last="Brunner">Patrick C. Brunner</name><affiliation wicri:level="1"><mods:affiliation>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4</wicri:regionArea></affiliation></author><author><name sortKey="Douglas, Marlis R" sort="Douglas, Marlis R" uniqKey="Douglas M" first="Marlis R." last="Douglas">Marlis R. Douglas</name><affiliation wicri:level="1"><mods:affiliation>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Zoologisches Museum, Universität Zürich, Winterthurerstrasse 190, CH‐8057 Zürich</wicri:regionArea></affiliation></author><author><name sortKey="Osinov, Alexander" sort="Osinov, Alexander" uniqKey="Osinov A" first="Alexander" last="Osinov">Alexander Osinov</name><affiliation wicri:level="1"><mods:affiliation>Department of Ichthyology, Moscow State University, Moscow, 119899, Russia</mods:affiliation><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Ichthyology, Moscow State University, Moscow, 119899</wicri:regionArea></affiliation></author><author><name sortKey="Wilson, Chris C" sort="Wilson, Chris C" uniqKey="Wilson C" first="Chris C." last="Wilson">Chris C. Wilson</name><affiliation wicri:level="1"><mods:affiliation>Ontario Ministry of Natural Resources, Aquatic Ecosystems Science Section, Trent University, Peterborough Ontario, K9J 8N8, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Ontario Ministry of Natural Resources, Aquatic Ecosystems Science Section, Trent University, Peterborough Ontario, K9J 8N8</wicri:regionArea></affiliation></author><author><name sortKey="Bernatchez, Louis" sort="Bernatchez, Louis" uniqKey="Bernatchez L" first="Louis" last="Bernatchez">Louis Bernatchez</name><affiliation wicri:level="1"><mods:affiliation>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Département de biologie, GIROQ, Université Laval, Saint‐Foy Québec G1K 7P4</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Evolution</title><idno type="ISSN">0014-3820</idno><idno type="eISSN">1558-5646</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2001-03">2001-03</date><biblScope unit="volume">55</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="573">573</biblScope><biblScope unit="page" to="586">586</biblScope></imprint><idno type="ISSN">0014-3820</idno></series><idno type="istex">39BD324AA62210237F622446FA0FD4A33FBF7D68</idno><idno type="DOI">10.1111/j.0014-3820.2001.tb00790.x</idno><idno type="ArticleID">EVO573</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0014-3820</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Arctic charr</term><term>Salvelinus alpinus</term><term>control region</term><term>mitochondrial DNA</term><term>phylogeography</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Abstract This study evaluated mitochondrial DNA (mtDNA) sequence variation in a 552‐bp fragment of the control region of Arctic charr (Salvelinus alpinus) by analyzing 159 individuals from 83 populations throughout the entire range of the complex. A total of 89 (16.1%) nucleotide positions were polymorphic, and these defined 63 haplotypes. Phylogenetic analyses supported the monophyly of the complex and assigned the observed haplotypes to five geographic regions that may be associated with different glacial refugia. Most notably, a formerly defined major evolutionary lineage (S. a. erythrinus) ranging from North America across the Arctic archipelago to the Eurasian continent has now been partitioned into the Arctic group and the newly identified Siberian group. The Beringian group, formed entirely by specimens assigned to S. malma (Dolly Varden), encompassed the area formerly assigned to S. a. taranetzi. The latter, due to a unique haplotype, became the basal member of the Arctic group. Overall, the S. alpinus complex reflects divergent evolutionary groups coupled with shallow intergroup differentiation, also indicated by an analysis of molecular variance that attributed 73.7% (P < 0.001) of the total genetic variance among groups. Time estimates, based on sequence divergence, suggest a separation of the major phylogeographic groups during early to mid‐Pleistocene. In contrast, colonization of most of today's range started relatively recently, most likely late Pleistocene during the last retreat of ice sheets some 10,000–20,000 years ago. This time scale obviously is too shallow for detecting significant variation on a smaller scale using mtDNA markers. However, other studies using nuclear microsatellite DNA variation strongly suggested ongoing evolution within groups by revealing strong population‐genetic substructuring and restricted gene flow among populations. Thus, Arctic charr could serve as a model organism to investigate the linkage between historical and contemporary components of phylogeographic structuring in fish, and, with a global perspective of the distribution of genetic variation as a framework, meaningful comparisons of charr studies at a smaller geographic scale will now be possible.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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