Mitochondrial phylogeny of trematomid fishes (Nototheniidae, Perciformes) and the evolution of antarctic fish

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1996
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Ritchie, Peter A.
Bargelloni, Luca
Taylor, John A.
MacDonald, John A.
Lambert, David M.
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Molecular Phylogenetics and Evolution. 1996, 5(2), pp. 383-390. ISSN 1055-7903. Available under: doi: 10.1006/mpev.1996.0033
Zusammenfassung

The subfamily of fishes Trematominae is endemic to the subzero waters of Antarctica and is part of the larger notothenioid radiation. Partial mitochondrial sequences from the 12S and 16S ribosomal RNA(rRNA) domigenes and a phylogeny for 10 trematomid species are presented. As has been previously suggested, two taxa, Trematomus scotti and T. newnesi, do not appear to be part of the main trematomid radiation. The genus Pagothenia is nested within the genus Trematomus and has evolved a unique cyropelagic existence, an association with pack ice. Using a mitochondrial rRNA molecular clock rate of 0.14% transversion changes per million years, the average age of the trematomids is esprestimated at 3.4 million years (MY). If the age of the trematomids is approximately 3.4 MY, this group could have speciated during a period of deglaciation in Antbearctica 2.5 4.8 million years ago. This era was marked esby significant changes on the Antarctic shores, such as the opening of fjords, which might have provided a stimulus for speciation.

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570 Biowissenschaften, Biologie
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ISO 690RITCHIE, Peter A., Luca BARGELLONI, Axel MEYER, John A. TAYLOR, John A. MACDONALD, David M. LAMBERT, 1996. Mitochondrial phylogeny of trematomid fishes (Nototheniidae, Perciformes) and the evolution of antarctic fish. In: Molecular Phylogenetics and Evolution. 1996, 5(2), pp. 383-390. ISSN 1055-7903. Available under: doi: 10.1006/mpev.1996.0033
BibTex
@article{Ritchie1996Mitoc-7626,
  year={1996},
  doi={10.1006/mpev.1996.0033},
  title={Mitochondrial phylogeny of trematomid fishes (Nototheniidae, Perciformes) and the evolution of antarctic fish},
  number={2},
  volume={5},
  issn={1055-7903},
  journal={Molecular Phylogenetics and Evolution},
  pages={383--390},
  author={Ritchie, Peter A. and Bargelloni, Luca and Meyer, Axel and Taylor, John A. and MacDonald, John A. and Lambert, David M.}
}
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