A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species
The walleye pollock (Theragra chalcogramma) and Norwegian pollock (T. finnmarchica) are confined to the North Pacific and North Atlantic Oceans, respectively, and considered as distinct species within the family Gadidae. We have determined the complete mtDNA nucleotide sequence of two specimens of N...
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ftnorduniv:oai:nordopen.nord.no:11250/295093 2023-05-15T15:27:41+02:00 A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species Ursvik, Anita Breines, Ragna Christiansen, Jørgen Schou Fevolden, Svein-Erik Coucheron, Dag H. Johansen, Steinar Daae 2015-08-04T11:49:37Z application/pdf http://hdl.handle.net/11250/295093 https://doi.org/10.1186/1471-2148-7-86 eng eng BioMed Central Ursvik, A., Breines, R., Christiansen, J.S., Fevolden, S.-E., Coucheron, D.H. & Johansen, S.D. (2007). A mitogenomic approach to the taxonomy of pollocks: Theragra chalcogramma and T. finnmarchica represent one single species. BMC Evolutionary Biology, 7: 86. doi: urn:issn:1471-2148 http://hdl.handle.net/11250/295093 https://doi.org/10.1186/1471-2148-7-86 cristin:679075 Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ © 2007, The Author(s) CC-BY 8 7 BMC Evolutionary Biology VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 Journal article Peer reviewed 2015 ftnorduniv https://doi.org/10.1186/1471-2148-7-86 2021-07-13T18:12:50Z The walleye pollock (Theragra chalcogramma) and Norwegian pollock (T. finnmarchica) are confined to the North Pacific and North Atlantic Oceans, respectively, and considered as distinct species within the family Gadidae. We have determined the complete mtDNA nucleotide sequence of two specimens of Norwegian pollock and compared the sequences to that of 10 specimens of walleye pollock representing stocks from the Sea of Japan and the Bering Sea, 2 specimens of Atlantic cod (Gadus morhua), and 2 specimens of haddock (Melanogrammus aeglefinus). A total number of 204 variable positions were identified among the 12 pollock specimens, but no specific substitution pattern could be identified between the walleye and Norwegian pollocks. Phylogenetic analysis using 16.500 homologous mtDNA nucleotide positions clearly identify the Norwegian pollock within the walleye pollock species cluster. Furthermore, the Norwegian pollock sequences were most similar to mitochondrial genotypes present in walleye pollock specimens from the Sea of Japan, an observation supported both by neighbor-joining, maximum parsimony, and maximum likelihood analyses. We infer that walleye pollock and Norwegian pollock represent one single species and that Norwegian pollock has been recently introduced from the Pacific to the Atlantic Oceans. We infer that walleye pollock and Norwegian pollock represent one single species and that Norwegian pollock has been recently introduced from the Pacific to the Atlantic Oceans. Article in Journal/Newspaper atlantic cod Bering Sea Gadus morhua North Atlantic norwegian pollock Theragra chalcogramma Open archive Nord universitet Bering Sea Pacific BMC Evolutionary Biology 7 1 86 |
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Open Polar |
collection |
Open archive Nord universitet |
op_collection_id |
ftnorduniv |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 |
spellingShingle |
VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 Ursvik, Anita Breines, Ragna Christiansen, Jørgen Schou Fevolden, Svein-Erik Coucheron, Dag H. Johansen, Steinar Daae A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species |
topic_facet |
VDP::Mathematics and natural science: 400::Basic biosciences: 470::Genetics and genomics: 474 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 |
description |
The walleye pollock (Theragra chalcogramma) and Norwegian pollock (T. finnmarchica) are confined to the North Pacific and North Atlantic Oceans, respectively, and considered as distinct species within the family Gadidae. We have determined the complete mtDNA nucleotide sequence of two specimens of Norwegian pollock and compared the sequences to that of 10 specimens of walleye pollock representing stocks from the Sea of Japan and the Bering Sea, 2 specimens of Atlantic cod (Gadus morhua), and 2 specimens of haddock (Melanogrammus aeglefinus). A total number of 204 variable positions were identified among the 12 pollock specimens, but no specific substitution pattern could be identified between the walleye and Norwegian pollocks. Phylogenetic analysis using 16.500 homologous mtDNA nucleotide positions clearly identify the Norwegian pollock within the walleye pollock species cluster. Furthermore, the Norwegian pollock sequences were most similar to mitochondrial genotypes present in walleye pollock specimens from the Sea of Japan, an observation supported both by neighbor-joining, maximum parsimony, and maximum likelihood analyses. We infer that walleye pollock and Norwegian pollock represent one single species and that Norwegian pollock has been recently introduced from the Pacific to the Atlantic Oceans. We infer that walleye pollock and Norwegian pollock represent one single species and that Norwegian pollock has been recently introduced from the Pacific to the Atlantic Oceans. |
format |
Article in Journal/Newspaper |
author |
Ursvik, Anita Breines, Ragna Christiansen, Jørgen Schou Fevolden, Svein-Erik Coucheron, Dag H. Johansen, Steinar Daae |
author_facet |
Ursvik, Anita Breines, Ragna Christiansen, Jørgen Schou Fevolden, Svein-Erik Coucheron, Dag H. Johansen, Steinar Daae |
author_sort |
Ursvik, Anita |
title |
A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species |
title_short |
A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species |
title_full |
A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species |
title_fullStr |
A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species |
title_full_unstemmed |
A mitogenomic approach to the taxonomy of pollocks : Theragra chalcogramma and T. finnmarchica represent one single species |
title_sort |
mitogenomic approach to the taxonomy of pollocks : theragra chalcogramma and t. finnmarchica represent one single species |
publisher |
BioMed Central |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/295093 https://doi.org/10.1186/1471-2148-7-86 |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
atlantic cod Bering Sea Gadus morhua North Atlantic norwegian pollock Theragra chalcogramma |
genre_facet |
atlantic cod Bering Sea Gadus morhua North Atlantic norwegian pollock Theragra chalcogramma |
op_source |
8 7 BMC Evolutionary Biology |
op_relation |
Ursvik, A., Breines, R., Christiansen, J.S., Fevolden, S.-E., Coucheron, D.H. & Johansen, S.D. (2007). A mitogenomic approach to the taxonomy of pollocks: Theragra chalcogramma and T. finnmarchica represent one single species. BMC Evolutionary Biology, 7: 86. doi: urn:issn:1471-2148 http://hdl.handle.net/11250/295093 https://doi.org/10.1186/1471-2148-7-86 cristin:679075 |
op_rights |
Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ © 2007, The Author(s) |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1186/1471-2148-7-86 |
container_title |
BMC Evolutionary Biology |
container_volume |
7 |
container_issue |
1 |
container_start_page |
86 |
_version_ |
1766358104045256704 |