Postglacial recolonization patterns and genetic relationships among whitefish ( Coregonus sp.) populations in Denmark, inferred from mitochondrial DNA and microsatellite markers

Michael Møller Hansen, Karen-Lise Dons Mensberg, Søren Berg

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The genetic relationships among morphologically and geographically divergent populations of whitefish (genus: Coregonus) from Denmark and the Baltic Sea region were studied by analysis of microsatellites and polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) analysis of mitochondrial DNA (mtDNA) segments, The endangered North Sea houting (classified as C. oxyrhynchus) differs morphologically and physiologically from other Danish whitefish (C. lavaretus). However, limited divergence of North Sea houting was observed both at the level of mtDNA and microsatellites. The implications of these results for the conservation status of North Sea houting are discussed in the light of current definitions of evolutionary significant units. Both mtDNA and microsatellite data indicated that postglacial recolonization by C. lavaretus in Denmark was less likely to have taken place from the Baltic Sea. Instead, the data suggested a recent common origin of all Danish whitefish populations, including North Sea houting, probably by recolonization via the postglacial Elbe River system. Estimates of genetic differentiation among populations based on mtDNA and microsatellites were qualitatively different. In addition, for both classes of markers analyses of genetic differentiation yielded different results, depending on whether molecular distances between alleles or haplotypes were included.
Original languageEnglish
JournalMolecular Ecology
Volume8
Issue number2
Pages (from-to)239-252
ISSN0962-1083
DOIs
Publication statusPublished - 1999

Cite this

@article{48d432bb8e304b1b8e49ec18727b6d9e,
title = "Postglacial recolonization patterns and genetic relationships among whitefish ( Coregonus sp.) populations in Denmark, inferred from mitochondrial DNA and microsatellite markers",
abstract = "The genetic relationships among morphologically and geographically divergent populations of whitefish (genus: Coregonus) from Denmark and the Baltic Sea region were studied by analysis of microsatellites and polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) analysis of mitochondrial DNA (mtDNA) segments, The endangered North Sea houting (classified as C. oxyrhynchus) differs morphologically and physiologically from other Danish whitefish (C. lavaretus). However, limited divergence of North Sea houting was observed both at the level of mtDNA and microsatellites. The implications of these results for the conservation status of North Sea houting are discussed in the light of current definitions of evolutionary significant units. Both mtDNA and microsatellite data indicated that postglacial recolonization by C. lavaretus in Denmark was less likely to have taken place from the Baltic Sea. Instead, the data suggested a recent common origin of all Danish whitefish populations, including North Sea houting, probably by recolonization via the postglacial Elbe River system. Estimates of genetic differentiation among populations based on mtDNA and microsatellites were qualitatively different. In addition, for both classes of markers analyses of genetic differentiation yielded different results, depending on whether molecular distances between alleles or haplotypes were included.",
keywords = "{\O}kosystembeskrivelse",
author = "Hansen, {Michael M{\o}ller} and Mensberg, {Karen-Lise Dons} and S{\o}ren Berg",
year = "1999",
doi = "10.1046/j.1365-294X.1999.00557.x",
language = "English",
volume = "8",
pages = "239--252",
journal = "Molecular Ecology",
issn = "0962-1083",
publisher = "Wiley-Blackwell",
number = "2",

}

Postglacial recolonization patterns and genetic relationships among whitefish ( Coregonus sp.) populations in Denmark, inferred from mitochondrial DNA and microsatellite markers. / Hansen, Michael Møller; Mensberg, Karen-Lise Dons; Berg, Søren.

In: Molecular Ecology, Vol. 8, No. 2, 1999, p. 239-252.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Postglacial recolonization patterns and genetic relationships among whitefish ( Coregonus sp.) populations in Denmark, inferred from mitochondrial DNA and microsatellite markers

AU - Hansen, Michael Møller

AU - Mensberg, Karen-Lise Dons

AU - Berg, Søren

PY - 1999

Y1 - 1999

N2 - The genetic relationships among morphologically and geographically divergent populations of whitefish (genus: Coregonus) from Denmark and the Baltic Sea region were studied by analysis of microsatellites and polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) analysis of mitochondrial DNA (mtDNA) segments, The endangered North Sea houting (classified as C. oxyrhynchus) differs morphologically and physiologically from other Danish whitefish (C. lavaretus). However, limited divergence of North Sea houting was observed both at the level of mtDNA and microsatellites. The implications of these results for the conservation status of North Sea houting are discussed in the light of current definitions of evolutionary significant units. Both mtDNA and microsatellite data indicated that postglacial recolonization by C. lavaretus in Denmark was less likely to have taken place from the Baltic Sea. Instead, the data suggested a recent common origin of all Danish whitefish populations, including North Sea houting, probably by recolonization via the postglacial Elbe River system. Estimates of genetic differentiation among populations based on mtDNA and microsatellites were qualitatively different. In addition, for both classes of markers analyses of genetic differentiation yielded different results, depending on whether molecular distances between alleles or haplotypes were included.

AB - The genetic relationships among morphologically and geographically divergent populations of whitefish (genus: Coregonus) from Denmark and the Baltic Sea region were studied by analysis of microsatellites and polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) analysis of mitochondrial DNA (mtDNA) segments, The endangered North Sea houting (classified as C. oxyrhynchus) differs morphologically and physiologically from other Danish whitefish (C. lavaretus). However, limited divergence of North Sea houting was observed both at the level of mtDNA and microsatellites. The implications of these results for the conservation status of North Sea houting are discussed in the light of current definitions of evolutionary significant units. Both mtDNA and microsatellite data indicated that postglacial recolonization by C. lavaretus in Denmark was less likely to have taken place from the Baltic Sea. Instead, the data suggested a recent common origin of all Danish whitefish populations, including North Sea houting, probably by recolonization via the postglacial Elbe River system. Estimates of genetic differentiation among populations based on mtDNA and microsatellites were qualitatively different. In addition, for both classes of markers analyses of genetic differentiation yielded different results, depending on whether molecular distances between alleles or haplotypes were included.

KW - Økosystembeskrivelse

U2 - 10.1046/j.1365-294X.1999.00557.x

DO - 10.1046/j.1365-294X.1999.00557.x

M3 - Journal article

VL - 8

SP - 239

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JO - Molecular Ecology

JF - Molecular Ecology

SN - 0962-1083

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