R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal
Evaluating how populations are connected by migration is important for understanding species resilience because gene flow can facilitate recovery from demographic declines. We therefore investigated the extent to which migration may have contributed to the global recovery of the Antarctic fur seal (...
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2024
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ftroysocietyfig:oai:figshare.com:article/25484499 2024-04-28T07:58:21+00:00 R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal J. I. Hoffman E. Bauer A. J. Paijmans E. Humble L. M. Beckmann C. Kubetschek F. Christaller N. Kröcker B. Fuchs A. Moreras Y. D. Shihlomule M. N. Bester A. C. Cleary P. J. N. De Bruyn J. Forcada M. E. Goebel S. D. Goldsworthy C. Guinet A. R. Hoelzel C. Lydersen K. M. Kovacs A. Lowther 2024-03-27T02:32:25Z https://doi.org/10.6084/m9.figshare.25484499.v1 https://figshare.com/articles/journal_contribution/R-code_from_A_global_cline_in_a_colour_polymorphism_suggests_a_limited_contribution_of_gene_flow_towards_the_recovery_of_a_heavily_exploited_marine_mammal/25484499 unknown doi:10.6084/m9.figshare.25484499.v1 https://figshare.com/articles/journal_contribution/R-code_from_A_global_cline_in_a_colour_polymorphism_suggests_a_limited_contribution_of_gene_flow_towards_the_recovery_of_a_heavily_exploited_marine_mammal/25484499 CC BY 4.0 Ecology not elsewhere classified Genetics colour polymorphism melanocortin 1 receptor gene population structure fur seal pinniped Text Journal contribution 2024 ftroysocietyfig https://doi.org/10.6084/m9.figshare.25484499.v1 2024-04-03T15:05:55Z Evaluating how populations are connected by migration is important for understanding species resilience because gene flow can facilitate recovery from demographic declines. We therefore investigated the extent to which migration may have contributed to the global recovery of the Antarctic fur seal ( Arctocephalus gazella ), a circumpolar distributed marine mammal that was brought to the brink of extinction by the sealing industry in the eighteenth and nineteenth centuries. It is widely believed that animals emigrating from South Georgia, where a relict population escaped sealing, contributed to the re-establishment of formerly occupied breeding colonies across the geographical range of the species. To investigate this, we interrogated a genetic polymorphism (S291F) in the melanocortin 1 receptor gene, which is responsible for a cream-coloured phenotype that is relatively abundant at South Georgia and which appears to have recently spread to localities as far afield as Marion Island in the sub-Antarctic Indian Ocean. By sequencing a short region of this gene in 1492 pups from eight breeding colonies, we showed that S291F frequency rapidly declines with increasing geographical distance from South Georgia, consistent with locally restricted gene flow from South Georgia mainly to the South Shetland Islands and Bouvetøya. The S291F allele was not detected farther afield, suggesting that although emigrants from South Georgia may have been locally important, they are unlikely to have played a major role in the recovery of geographically more distant populations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Bouvetøya Marion Island South Shetland Islands The Royal Society: Figshare |
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Open Polar |
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The Royal Society: Figshare |
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ftroysocietyfig |
language |
unknown |
topic |
Ecology not elsewhere classified Genetics colour polymorphism melanocortin 1 receptor gene population structure fur seal pinniped |
spellingShingle |
Ecology not elsewhere classified Genetics colour polymorphism melanocortin 1 receptor gene population structure fur seal pinniped J. I. Hoffman E. Bauer A. J. Paijmans E. Humble L. M. Beckmann C. Kubetschek F. Christaller N. Kröcker B. Fuchs A. Moreras Y. D. Shihlomule M. N. Bester A. C. Cleary P. J. N. De Bruyn J. Forcada M. E. Goebel S. D. Goldsworthy C. Guinet A. R. Hoelzel C. Lydersen K. M. Kovacs A. Lowther R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
topic_facet |
Ecology not elsewhere classified Genetics colour polymorphism melanocortin 1 receptor gene population structure fur seal pinniped |
description |
Evaluating how populations are connected by migration is important for understanding species resilience because gene flow can facilitate recovery from demographic declines. We therefore investigated the extent to which migration may have contributed to the global recovery of the Antarctic fur seal ( Arctocephalus gazella ), a circumpolar distributed marine mammal that was brought to the brink of extinction by the sealing industry in the eighteenth and nineteenth centuries. It is widely believed that animals emigrating from South Georgia, where a relict population escaped sealing, contributed to the re-establishment of formerly occupied breeding colonies across the geographical range of the species. To investigate this, we interrogated a genetic polymorphism (S291F) in the melanocortin 1 receptor gene, which is responsible for a cream-coloured phenotype that is relatively abundant at South Georgia and which appears to have recently spread to localities as far afield as Marion Island in the sub-Antarctic Indian Ocean. By sequencing a short region of this gene in 1492 pups from eight breeding colonies, we showed that S291F frequency rapidly declines with increasing geographical distance from South Georgia, consistent with locally restricted gene flow from South Georgia mainly to the South Shetland Islands and Bouvetøya. The S291F allele was not detected farther afield, suggesting that although emigrants from South Georgia may have been locally important, they are unlikely to have played a major role in the recovery of geographically more distant populations. |
format |
Article in Journal/Newspaper |
author |
J. I. Hoffman E. Bauer A. J. Paijmans E. Humble L. M. Beckmann C. Kubetschek F. Christaller N. Kröcker B. Fuchs A. Moreras Y. D. Shihlomule M. N. Bester A. C. Cleary P. J. N. De Bruyn J. Forcada M. E. Goebel S. D. Goldsworthy C. Guinet A. R. Hoelzel C. Lydersen K. M. Kovacs A. Lowther |
author_facet |
J. I. Hoffman E. Bauer A. J. Paijmans E. Humble L. M. Beckmann C. Kubetschek F. Christaller N. Kröcker B. Fuchs A. Moreras Y. D. Shihlomule M. N. Bester A. C. Cleary P. J. N. De Bruyn J. Forcada M. E. Goebel S. D. Goldsworthy C. Guinet A. R. Hoelzel C. Lydersen K. M. Kovacs A. Lowther |
author_sort |
J. I. Hoffman |
title |
R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_short |
R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_full |
R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_fullStr |
R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_full_unstemmed |
R-code from A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
title_sort |
r-code from a global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal |
publishDate |
2024 |
url |
https://doi.org/10.6084/m9.figshare.25484499.v1 https://figshare.com/articles/journal_contribution/R-code_from_A_global_cline_in_a_colour_polymorphism_suggests_a_limited_contribution_of_gene_flow_towards_the_recovery_of_a_heavily_exploited_marine_mammal/25484499 |
genre |
Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Bouvetøya Marion Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Fur Seal Arctocephalus gazella Bouvetøya Marion Island South Shetland Islands |
op_relation |
doi:10.6084/m9.figshare.25484499.v1 https://figshare.com/articles/journal_contribution/R-code_from_A_global_cline_in_a_colour_polymorphism_suggests_a_limited_contribution_of_gene_flow_towards_the_recovery_of_a_heavily_exploited_marine_mammal/25484499 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.6084/m9.figshare.25484499.v1 |
_version_ |
1797569024119275520 |