Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260
Abstract.—The variation in mitochondrial DNA (mtDNA) and at eight microsatellite loci was analyzed in 700 rougheye rockfish Sebastes aleutianus sampled along the Pacific Rim from the Oregon coast to the western Aleutian Islands and Bering Sea. The program STRUCTURE was used to analyze the microsatel...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.542.3579 2023-05-15T13:14:44+02:00 Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260 Anthony J. Gharrett Andrew P. Matala Eric L. Peterson Andrew K. Gray Zhouzhou Li Jonathan Heifetz The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.3579 http://doc.nprb.org/web/02_prjs/r0209_article.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.3579 http://doc.nprb.org/web/02_prjs/r0209_article.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://doc.nprb.org/web/02_prjs/r0209_article.pdf text 2005 ftciteseerx 2016-01-08T11:07:30Z Abstract.—The variation in mitochondrial DNA (mtDNA) and at eight microsatellite loci was analyzed in 700 rougheye rockfish Sebastes aleutianus sampled along the Pacific Rim from the Oregon coast to the western Aleutian Islands and Bering Sea. The program STRUCTURE was used to analyze the microsatellite genotypes and determine that the samples probably came from two genetically distinct sources (type I and type II) by minimizing the strong Hardy2Weinberg and gametic disequilibria observed in the total sample. The two types had nearly fixed differences at one microsatellite locus (mSma 6), which corresponded to divergent mtDNA haplotype clusters. We conclude that these two types are distinct species. The ranges of the two types overlapped but were not coincident; in some areas, one or the other predominated. For example, most of the Aleutian Island samples were type I fish. Although both types were caught in the same hauls in some regions, often one or the other species was predominant in a haul. The differences in distributions suggest a historic vicariant or ecological basis for their divergence. No phenotypic characteristics have been confirmed that can be used to distinguish the two species visually. Rougheye rockfish have high commercial value and their incidental catch has the potential to greatly affect larger fisheries. The discovery of cryptic speciation in a commercially important Text Aleutian Island Bering Sea Aleutian Islands Unknown Bering Sea Pacific |
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Open Polar |
collection |
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ftciteseerx |
language |
English |
description |
Abstract.—The variation in mitochondrial DNA (mtDNA) and at eight microsatellite loci was analyzed in 700 rougheye rockfish Sebastes aleutianus sampled along the Pacific Rim from the Oregon coast to the western Aleutian Islands and Bering Sea. The program STRUCTURE was used to analyze the microsatellite genotypes and determine that the samples probably came from two genetically distinct sources (type I and type II) by minimizing the strong Hardy2Weinberg and gametic disequilibria observed in the total sample. The two types had nearly fixed differences at one microsatellite locus (mSma 6), which corresponded to divergent mtDNA haplotype clusters. We conclude that these two types are distinct species. The ranges of the two types overlapped but were not coincident; in some areas, one or the other predominated. For example, most of the Aleutian Island samples were type I fish. Although both types were caught in the same hauls in some regions, often one or the other species was predominant in a haul. The differences in distributions suggest a historic vicariant or ecological basis for their divergence. No phenotypic characteristics have been confirmed that can be used to distinguish the two species visually. Rougheye rockfish have high commercial value and their incidental catch has the potential to greatly affect larger fisheries. The discovery of cryptic speciation in a commercially important |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Anthony J. Gharrett Andrew P. Matala Eric L. Peterson Andrew K. Gray Zhouzhou Li Jonathan Heifetz |
spellingShingle |
Anthony J. Gharrett Andrew P. Matala Eric L. Peterson Andrew K. Gray Zhouzhou Li Jonathan Heifetz Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260 |
author_facet |
Anthony J. Gharrett Andrew P. Matala Eric L. Peterson Andrew K. Gray Zhouzhou Li Jonathan Heifetz |
author_sort |
Anthony J. Gharrett |
title |
Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260 |
title_short |
Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260 |
title_full |
Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260 |
title_fullStr |
Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260 |
title_full_unstemmed |
Two genetically distinct forms of rougheye rockfish (Sebastes aleutianus) are different species. Transactions of the American Fisheries Society 134:242–260 |
title_sort |
two genetically distinct forms of rougheye rockfish (sebastes aleutianus) are different species. transactions of the american fisheries society 134:242–260 |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.3579 http://doc.nprb.org/web/02_prjs/r0209_article.pdf |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Aleutian Island Bering Sea Aleutian Islands |
genre_facet |
Aleutian Island Bering Sea Aleutian Islands |
op_source |
http://doc.nprb.org/web/02_prjs/r0209_article.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.3579 http://doc.nprb.org/web/02_prjs/r0209_article.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766265203016597504 |