Phylogenetic relationships among Palearctic and Nearctic burbot (Lota lota): Pleistocene extinctions and recolonization.
Identifieur interne : 000A43 ( Main/Exploration ); précédent : 000A42; suivant : 000A44Phylogenetic relationships among Palearctic and Nearctic burbot (Lota lota): Pleistocene extinctions and recolonization.
Auteurs : J K Van Houdt [Belgique] ; B. Hellemans ; F A M. VolckaertSource :
- Molecular phylogenetics and evolution [ 1055-7903 ] ; 2003.
Descripteurs français
- KwdFr :
- ADN mitochondrial (génétique), Amorces ADN (MeSH), Analyse de séquence d'ADN (MeSH), Animaux (MeSH), Données de séquences moléculaires (MeSH), Démographie (MeSH), Eau douce (MeSH), Géographie (MeSH), Modèles génétiques (MeSH), Phylogenèse (MeSH), Poissons (génétique), Séquence nucléotidique (MeSH), Variation génétique (MeSH), Évolution moléculaire (MeSH).
- MESH :
English descriptors
- KwdEn :
- Animals (MeSH), Base Sequence (MeSH), DNA Primers (MeSH), DNA, Mitochondrial (genetics), Demography (MeSH), Evolution, Molecular (MeSH), Fishes (genetics), Fresh Water (MeSH), Genetic Variation (MeSH), Geography (MeSH), Models, Genetic (MeSH), Molecular Sequence Data (MeSH), Phylogeny (MeSH), Sequence Analysis, DNA (MeSH).
- MESH :
- chemical , genetics : DNA, Mitochondrial.
- chemical : DNA Primers.
- genetics : Fishes.
- Animals, Base Sequence, Demography, Evolution, Molecular, Fresh Water, Genetic Variation, Geography, Models, Genetic, Molecular Sequence Data, Phylogeny, Sequence Analysis, DNA.
Abstract
The burbot (Lota lota Linnaeus, 1758) is the only freshwater species from the cod family. Various taxonomic hypotheses were tested against molecular data by sequencing the mitochondrial cytochrome b locus of 120 burbot from 41 populations together with the related species Molva molva (ling) and Brosme brosme (tusk), which represented the other Lotinae genera. Within the genus Lota two distinct phylogroups were observed: one in North America south of the Great Slave Lakes (Lota lota maculosa) and one in Eurasia and the remainder of the Nearctic region (Lota lota lota). The burbot lineage separated 10 Myr BP from the other Lotinae, while the genetic variation within burbot appeared to be approximately 1 Myr old. However, fossil evidence suggested that burbot already existed in the Early Pliocene in Europe, from were it probably colonized North America in the Early Pleistocene. While Nearctic burbot survived climatic oscillations and diverged in several refugia, the Eurasian form became extinct or was reduced to a very small population. In the Late Pleistocene the species recolonized the Palearctic region to establish its present distribution range.
PubMed: 14615196
Affiliations:
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Hellemans</name></author><author><name sortKey="Volckaert, F A M" sort="Volckaert, F A M" uniqKey="Volckaert F" first="F A M" last="Volckaert">F A M. Volckaert</name></author></analytic><series><title level="j">Molecular phylogenetics and evolution</title><idno type="ISSN">1055-7903</idno><imprint><date when="2003" type="published">2003</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term><term>Base Sequence (MeSH)</term><term>DNA Primers (MeSH)</term><term>DNA, Mitochondrial (genetics)</term><term>Demography (MeSH)</term><term>Evolution, Molecular (MeSH)</term><term>Fishes (genetics)</term><term>Fresh Water (MeSH)</term><term>Genetic Variation (MeSH)</term><term>Geography (MeSH)</term><term>Models, Genetic (MeSH)</term><term>Molecular Sequence Data (MeSH)</term><term>Phylogeny (MeSH)</term><term>Sequence Analysis, DNA (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>ADN mitochondrial (génétique)</term><term>Amorces ADN (MeSH)</term><term>Analyse de séquence d'ADN (MeSH)</term><term>Animaux (MeSH)</term><term>Données de séquences moléculaires (MeSH)</term><term>Démographie (MeSH)</term><term>Eau douce (MeSH)</term><term>Géographie (MeSH)</term><term>Modèles génétiques (MeSH)</term><term>Phylogenèse (MeSH)</term><term>Poissons (génétique)</term><term>Séquence nucléotidique (MeSH)</term><term>Variation génétique (MeSH)</term><term>Évolution moléculaire (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>DNA, Mitochondrial</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>DNA Primers</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>ADN mitochondrial</term><term>Poissons</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Base Sequence</term><term>Demography</term><term>Evolution, Molecular</term><term>Fresh Water</term><term>Genetic Variation</term><term>Geography</term><term>Models, Genetic</term><term>Molecular Sequence Data</term><term>Phylogeny</term><term>Sequence Analysis, DNA</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Amorces ADN</term><term>Analyse de séquence d'ADN</term><term>Animaux</term><term>Données de séquences moléculaires</term><term>Démographie</term><term>Eau douce</term><term>Géographie</term><term>Modèles génétiques</term><term>Phylogenèse</term><term>Séquence nucléotidique</term><term>Variation génétique</term><term>Évolution moléculaire</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The burbot (Lota lota Linnaeus, 1758) is the only freshwater species from the cod family. Various taxonomic hypotheses were tested against molecular data by sequencing the mitochondrial cytochrome b locus of 120 burbot from 41 populations together with the related species Molva molva (ling) and Brosme brosme (tusk), which represented the other Lotinae genera. Within the genus Lota two distinct phylogroups were observed: one in North America south of the Great Slave Lakes (Lota lota maculosa) and one in Eurasia and the remainder of the Nearctic region (Lota lota lota). The burbot lineage separated 10 Myr BP from the other Lotinae, while the genetic variation within burbot appeared to be approximately 1 Myr old. However, fossil evidence suggested that burbot already existed in the Early Pliocene in Europe, from were it probably colonized North America in the Early Pleistocene. While Nearctic burbot survived climatic oscillations and diverged in several refugia, the Eurasian form became extinct or was reduced to a very small population. In the Late Pleistocene the species recolonized the Palearctic region to establish its present distribution range.</div></front></TEI><affiliations><list><country><li>Belgique</li></country><region><li>Province du Brabant flamand</li><li>Région flamande</li></region><settlement><li>Louvain</li></settlement><orgName><li>Katholieke Universiteit Leuven</li></orgName></list><tree><noCountry><name sortKey="Hellemans, B" sort="Hellemans, B" uniqKey="Hellemans B" first="B" last="Hellemans">B. Hellemans</name><name sortKey="Volckaert, F A M" sort="Volckaert, F A M" uniqKey="Volckaert F" first="F A M" last="Volckaert">F A M. Volckaert</name></noCountry><country name="Belgique"><region name="Région flamande"><name sortKey="Van Houdt, J K" sort="Van Houdt, J K" uniqKey="Van Houdt J" first="J K" last="Van Houdt">J K Van Houdt</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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