Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus)
The basking shark (Cetorhinus maximus) is found in temperate waters throughout the world's oceans, and has been subjected to extensive exploitation in some regions. However, little is known about its current abundance and genetic status. Here, we investigate the diversity of the mitochondrial D...
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ftnsoutheastern:oai:nsuworks.nova.edu:cnso_bio_facarticles-1853 2023-05-15T15:53:49+02:00 Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus) Hoelzel, A. Rus Shivji, Mahmood S. Magnussen, Jennifer E. Francis, Malcom 2006-12-22T08:00:00Z https://nsuworks.nova.edu/cnso_bio_facarticles/861 unknown NSUWorks https://nsuworks.nova.edu/cnso_bio_facarticles/861 Biology Faculty Articles Biodiversity Marine fish Sharks Mitochondrial DNA Biology Genetics and Genomics Life Sciences Marine Biology article 2006 ftnsoutheastern 2022-04-10T21:56:29Z The basking shark (Cetorhinus maximus) is found in temperate waters throughout the world's oceans, and has been subjected to extensive exploitation in some regions. However, little is known about its current abundance and genetic status. Here, we investigate the diversity of the mitochondrial DNA control region among samples from the western North Atlantic, eastern North Atlantic, Mediterranean Sea, Indian Ocean and western Pacific. We find just six haplotypes defined by five variable sites, a comparatively low genetic diversity of π=0.0013 and no significant differentiation between ocean basins. We provide evidence for a bottleneck event within the Holocene, estimate an effective population size (Ne) that is low for a globally distributed species, and discuss the implications. Article in Journal/Newspaper Cetorhinus maximus North Atlantic Nova Southeastern University: NSU Works Indian Pacific |
institution |
Open Polar |
collection |
Nova Southeastern University: NSU Works |
op_collection_id |
ftnsoutheastern |
language |
unknown |
topic |
Biodiversity Marine fish Sharks Mitochondrial DNA Biology Genetics and Genomics Life Sciences Marine Biology |
spellingShingle |
Biodiversity Marine fish Sharks Mitochondrial DNA Biology Genetics and Genomics Life Sciences Marine Biology Hoelzel, A. Rus Shivji, Mahmood S. Magnussen, Jennifer E. Francis, Malcom Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus) |
topic_facet |
Biodiversity Marine fish Sharks Mitochondrial DNA Biology Genetics and Genomics Life Sciences Marine Biology |
description |
The basking shark (Cetorhinus maximus) is found in temperate waters throughout the world's oceans, and has been subjected to extensive exploitation in some regions. However, little is known about its current abundance and genetic status. Here, we investigate the diversity of the mitochondrial DNA control region among samples from the western North Atlantic, eastern North Atlantic, Mediterranean Sea, Indian Ocean and western Pacific. We find just six haplotypes defined by five variable sites, a comparatively low genetic diversity of π=0.0013 and no significant differentiation between ocean basins. We provide evidence for a bottleneck event within the Holocene, estimate an effective population size (Ne) that is low for a globally distributed species, and discuss the implications. |
format |
Article in Journal/Newspaper |
author |
Hoelzel, A. Rus Shivji, Mahmood S. Magnussen, Jennifer E. Francis, Malcom |
author_facet |
Hoelzel, A. Rus Shivji, Mahmood S. Magnussen, Jennifer E. Francis, Malcom |
author_sort |
Hoelzel, A. Rus |
title |
Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus) |
title_short |
Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus) |
title_full |
Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus) |
title_fullStr |
Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus) |
title_full_unstemmed |
Low Worldwide Genetic Diversity in the Basking Shark (Cetorhinus maximus) |
title_sort |
low worldwide genetic diversity in the basking shark (cetorhinus maximus) |
publisher |
NSUWorks |
publishDate |
2006 |
url |
https://nsuworks.nova.edu/cnso_bio_facarticles/861 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
Cetorhinus maximus North Atlantic |
genre_facet |
Cetorhinus maximus North Atlantic |
op_source |
Biology Faculty Articles |
op_relation |
https://nsuworks.nova.edu/cnso_bio_facarticles/861 |
_version_ |
1766389004823953408 |