Comparative phylogeography of marine cladocerans

Durbin, Alan M.; Cristescu, Melania E.

doi:10.1007/s00227-008-0996-x

Cited by 16 publications

(25 citation statements)

References 44 publications

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“…In agreement with the existing literature (Durbin et al, ), our results corroborate that E. nordmanni is a cosmopolitan species. Nevertheless, the phylogenetic tree discriminates between the Baltic Sea, North Sea, and Atlantic sequences as a lineage that is genetically clearly distinct from its Pacific sister group.…”

Section: Discussionsupporting

confidence: 93%

“…Former analyses of the COI gene had already identified E. nordmanni as a cosmopolitan species, showing generally very low genetic diversity (Durbin et al, ). Phyllogenetic analyses in this study further revealed that populations of E. nordmanni in North Sea and Baltic Sea populations are one lineage (appendix SIII).…”

Section: Resultsmentioning

confidence: 99%

“…A haplotype network was created including 15 COI sequences from Durbin et al () (Figure ). All together, 28 haplotypes were observed.…”

Section: Resultsmentioning

confidence: 99%

“…n represents the number of sequences from each location used in the network. Abbreviations in brackets represent the ocean the sequence originates from (BS, Baltic Sea; BS/NS, Baltic Sea/North Sea transitional region; NS, North Sea; EA, East Atlantic; WA, West Atlantic; P, Pacific) Sequences from Vancouver, Alaska, Tasmania, Bering Strait, Portugal, Narragansett Bay, and Baltic Sea undefined were taken from the literature (Durbin et al, )…”

Section: Resultsmentioning

confidence: 99%

“…We selected the water flea Evadne nordmanni (Lovén, ) as such a successfully established marine representative in the Baltic Sea to compare the genetic diversity and relationship of North Sea and Baltic Sea populations along the salinity gradient from the German Bight through the Skagerrak and Kattegat to the western and central Baltic Sea. The water flea was selected on the basis of the following characteristics: (i) E. nordmanni is the most abundant representative of the genus Evadne in the Baltic Sea; (ii) Durbin, Hebert, and Cristescu () found a genetic variability in the COI gene in E. nordmanni that allows for a biogeographical analysis; (iii) DNA sequences already existed from various locations around the world, allowing for a comparison; and (iv) E. nordmanni could be unambiguously identified and is easy to distinguish from other species of the same genus.…”

Section: Introductionmentioning

confidence: 99%

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Population genetics of two allopatric (North Sea and Baltic Sea) populations of Evadne nordmanni (Podonidae): Similarities and differences

Böckmann

Seidler

Schubert

et al. 2018

Internat Rev Hydrobiol

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This study assessed the genetic relationship between Evadne nordmanni of the Baltic Sea and the North Sea from sequence variation of the mitochondrial cytochrome c oxidase subunit I gene (COI) of 88 specimens from 13 different sites, and from further published data from the Atlantic and Pacific basins. The COI sequences of E. nordmanni from the North and Baltic Seas were represented by a coherent cluster of 28 haplotypes dominated by a central haplotype that accounted for over half of the individuals from these seas, from all samples except one from the Arkona Basin (Baltic Sea). Overall, the North and Baltic Sea populations appear relatively homogenous and the North Sea plausibly represents the source population for the Baltic one. However, the haplotype network also involved a haplogroup of exclusively Baltic Sea haplotypes, comprising four haplotypes represented by 21 individuals and strongly dominated by specimens from the Arkona basin. This inspires discussion about the post‐glacial evolution of a genetically distinct Baltic Sea group, related to a special local salinity regime. Partly as a reflection of the presence of the unique haplogroup, the mean haplotype diversity in the Baltic was twice as high as the mean diversity in the North Sea, h = 0.64 versus h = 0.30.

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Section: Discussionsupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

“…A haplotype network was created including 15 COI sequences from Durbin et al () (Figure ). All together, 28 haplotypes were observed.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Population genetics of two allopatric (North Sea and Baltic Sea) populations of Evadne nordmanni (Podonidae): Similarities and differences

Böckmann

Seidler

Schubert

et al. 2018

Internat Rev Hydrobiol

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An environmental gradient dominates ecological and genetic differentiation of marine invertebrates between the North and Baltic Sea

Geburzi

Homberger

Kabus

et al. 2022

Ecology and Evolution

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Environmental gradients have emerged as important barriers to structuring populations and species distributions. We set out to test whether the strong salinity gradient from the marine North Sea to the brackish Baltic Sea in northern Europe represents an ecological and genetic break, and to identify life history traits that correlate with the strength of this break. We accumulated mitochondrial cytochrome oxidase subunit 1 sequence data, and data on the distribution, salinity tolerance, and life history for 28 species belonging to the Cnidaria, Crustacea, Echinodermata, Mollusca, Polychaeta, and Gastrotricha. We included seven non‐native species covering a broad range of times since introduction, in order to gain insight into the pace of adaptation and differentiation. We calculated measures of genetic diversity and differentiation across the environmental gradient, coalescent times, and migration rates between North and Baltic Sea populations, and analyzed correlations between genetic and life history data. The majority of investigated species is either genetically differentiated and/or adapted to the lower salinity conditions of the Baltic Sea. Species exhibiting population structure have a range of patterns of genetic diversity in comparison with the North Sea, from lower in the Baltic Sea to higher in the Baltic Sea, or equally diverse in North and Baltic Sea. Two of the non‐native species showed signs of genetic differentiation, their times since introduction to the Baltic Sea being about 80 and >700 years, respectively. Our results indicate that the transition from North Sea to Baltic Sea represents a genetic and ecological break: The diversity of genetic patterns points toward independent trajectories in the Baltic compared with the North Sea, and ecological differences with regard to salinity tolerance are common. The North Sea–Baltic Sea region provides a unique setting to study evolutionary adaptation during colonization processes at different stages by jointly considering native and non‐native species.

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Global population divergence of the sea star Hippasteria phrygiana corresponds to the onset of the last glacial period of the Pleistocene

et al. 2013

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Comparative phylogeography of marine cladocerans

Cited by 16 publications

References 44 publications

Population genetics of two allopatric (North Sea and Baltic Sea) populations of Evadne nordmanni (Podonidae): Similarities and differences

Population genetics of two allopatric (North Sea and Baltic Sea) populations of Evadne nordmanni (Podonidae): Similarities and differences

An environmental gradient dominates ecological and genetic differentiation of marine invertebrates between the North and Baltic Sea

Global population divergence of the sea star Hippasteria phrygiana corresponds to the onset of the last glacial period of the Pleistocene

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