Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation
The population structure of the Atlantic walrus, Odobenus rosmarus rosmarus , was studied using 11 polymorphic microsatellites and restriction fragment length polymorphism detected in the NADH‐dehydrogenase ND1, ND2 and ND3/4 segments in mtDNA. A total of 105 walrus samples were analysed from northw...
Published in: | Molecular Ecology |
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Language: | English |
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Online Access: | http://dx.doi.org/10.1046/j.1365-294x.1998.00455.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00455.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00455.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294x.1998.00455.x |
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crwiley:10.1046/j.1365-294x.1998.00455.x 2024-06-23T07:49:49+00:00 Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation ANDERSEN, L. W. BORN, E. W. GJERTZ, I. WIIG, Ø. HOLM, L.‐E. BENDIXEN, C. 1998 http://dx.doi.org/10.1046/j.1365-294x.1998.00455.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00455.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00455.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294x.1998.00455.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 7, issue 10, page 1323-1336 ISSN 0962-1083 1365-294X journal-article 1998 crwiley https://doi.org/10.1046/j.1365-294x.1998.00455.x 2024-06-13T04:20:48Z The population structure of the Atlantic walrus, Odobenus rosmarus rosmarus , was studied using 11 polymorphic microsatellites and restriction fragment length polymorphism detected in the NADH‐dehydrogenase ND1, ND2 and ND3/4 segments in mtDNA. A total of 105 walrus samples were analysed from northwest (NW) Greenland, east (E) Greenland, Svalbard and Franz Joseph Land. Two of the 10 haplotypes detected in the four samples were diagnostic for the NW Greenland sample, which implied that the group of walruses in this area is evolutionary distinct from walruses in the other three areas. One individual sampled in E Greenland exhibited a Pacific haplotype, which proved a connection between the Pacific walrus and walruses in eastern Greenland. The Franz Joseph Land, Svalbard and E Greenland samples shared the most common haplotype, indicating very little differentiation at the mtDNA level. Gene flow ( Nm ) estimates among the four areas indicated a very restricted exchange of female genes between NW Greenland and the more eastern Atlantic Arctic samples, and a closer relationship between the three samples composing the eastern Atlantic Arctic. The genetic variation at 11 polymorphic microsatellite loci grouped individuals into three populations, NW Greenland, E Greenland and a common Franz Joseph Land–Svalbard population, which were connected by moderate gene flow. Article in Journal/Newspaper Arctic Atlantic Arctic Atlantic-Arctic Franz Joseph Land Greenland Odobenus rosmarus Svalbard walrus* Wiley Online Library Arctic Greenland Pacific Svalbard Molecular Ecology 7 10 1323 1336 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The population structure of the Atlantic walrus, Odobenus rosmarus rosmarus , was studied using 11 polymorphic microsatellites and restriction fragment length polymorphism detected in the NADH‐dehydrogenase ND1, ND2 and ND3/4 segments in mtDNA. A total of 105 walrus samples were analysed from northwest (NW) Greenland, east (E) Greenland, Svalbard and Franz Joseph Land. Two of the 10 haplotypes detected in the four samples were diagnostic for the NW Greenland sample, which implied that the group of walruses in this area is evolutionary distinct from walruses in the other three areas. One individual sampled in E Greenland exhibited a Pacific haplotype, which proved a connection between the Pacific walrus and walruses in eastern Greenland. The Franz Joseph Land, Svalbard and E Greenland samples shared the most common haplotype, indicating very little differentiation at the mtDNA level. Gene flow ( Nm ) estimates among the four areas indicated a very restricted exchange of female genes between NW Greenland and the more eastern Atlantic Arctic samples, and a closer relationship between the three samples composing the eastern Atlantic Arctic. The genetic variation at 11 polymorphic microsatellite loci grouped individuals into three populations, NW Greenland, E Greenland and a common Franz Joseph Land–Svalbard population, which were connected by moderate gene flow. |
format |
Article in Journal/Newspaper |
author |
ANDERSEN, L. W. BORN, E. W. GJERTZ, I. WIIG, Ø. HOLM, L.‐E. BENDIXEN, C. |
spellingShingle |
ANDERSEN, L. W. BORN, E. W. GJERTZ, I. WIIG, Ø. HOLM, L.‐E. BENDIXEN, C. Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation |
author_facet |
ANDERSEN, L. W. BORN, E. W. GJERTZ, I. WIIG, Ø. HOLM, L.‐E. BENDIXEN, C. |
author_sort |
ANDERSEN, L. W. |
title |
Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation |
title_short |
Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation |
title_full |
Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation |
title_fullStr |
Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation |
title_full_unstemmed |
Population structure and gene flow of the Atlantic walrus ( Odobenus rosmarus rosmarus) in the eastern Atlantic Arctic based on mitochondrial DNA and microsatellite variation |
title_sort |
population structure and gene flow of the atlantic walrus ( odobenus rosmarus rosmarus) in the eastern atlantic arctic based on mitochondrial dna and microsatellite variation |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1046/j.1365-294x.1998.00455.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294x.1998.00455.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294x.1998.00455.x https://onlinelibrary.wiley.com/doi/full-xml/10.1046/j.1365-294x.1998.00455.x |
geographic |
Arctic Greenland Pacific Svalbard |
geographic_facet |
Arctic Greenland Pacific Svalbard |
genre |
Arctic Atlantic Arctic Atlantic-Arctic Franz Joseph Land Greenland Odobenus rosmarus Svalbard walrus* |
genre_facet |
Arctic Atlantic Arctic Atlantic-Arctic Franz Joseph Land Greenland Odobenus rosmarus Svalbard walrus* |
op_source |
Molecular Ecology volume 7, issue 10, page 1323-1336 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-294x.1998.00455.x |
container_title |
Molecular Ecology |
container_volume |
7 |
container_issue |
10 |
container_start_page |
1323 |
op_container_end_page |
1336 |
_version_ |
1802640493544210432 |