Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing
The Southern Ocean hosts an abundant and diverse fauna. The evolutionary history of these taxa has been strongly influenced by the oceanographic and glacial history of this region. Molecular studies have challenged the traditional characterization of many Antarctic taxa as circumpolar, uncovering la...
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ftcdlib:qt3z4692x7 2023-05-15T13:31:50+02:00 Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing Sasaki, Matthew C. 1 PDF (xi, 48 pages) 2015-01-01 application/pdf http://www.escholarship.org/uc/item/3z4692x7 http://n2t.net/ark:/20775/bb51212856 unknown eScholarship, University of California http://www.escholarship.org/uc/item/3z4692x7 qt3z4692x7 http://n2t.net/ark:/20775/bb51212856 public Sasaki, Matthew C.(2015). Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing. UC San Diego: Retrieved from: http://www.escholarship.org/uc/item/3z4692x7 Academic Dissertations UCSD Dissertations Academic Biology (Discipline) dissertation 2015 ftcdlib 2016-06-24T22:54:55Z The Southern Ocean hosts an abundant and diverse fauna. The evolutionary history of these taxa has been strongly influenced by the oceanographic and glacial history of this region. Molecular studies have challenged the traditional characterization of many Antarctic taxa as circumpolar, uncovering large amounts of unexpected diversity. In this study,we investigate the genetic diversity and population structuring of G. antarctica. Using double digest restriction-site associated DNA sequencing, we obtain a set of 4301 SNP markers from across the genome for a set of four populations spanning a large portion of this taxa's range distribution. This data set reveals clear evidence of strong population structuring across the Southern Ocean, at both large and small geographic scales. We reject the hypothesis of panmixia within the geographic region investigated. The data presents evidence of the influence of both the Antarctic Circumpolar Current and the last glacial maximum on the genetic structure of G. antarctica Doctoral or Postdoctoral Thesis Antarc* Antarctic Antarctica Southern Ocean University of California: eScholarship Antarctic Southern Ocean The Antarctic |
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Open Polar |
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University of California: eScholarship |
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ftcdlib |
language |
unknown |
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Academic Dissertations UCSD Dissertations Academic Biology (Discipline) |
spellingShingle |
Academic Dissertations UCSD Dissertations Academic Biology (Discipline) Sasaki, Matthew C. Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing |
topic_facet |
Academic Dissertations UCSD Dissertations Academic Biology (Discipline) |
description |
The Southern Ocean hosts an abundant and diverse fauna. The evolutionary history of these taxa has been strongly influenced by the oceanographic and glacial history of this region. Molecular studies have challenged the traditional characterization of many Antarctic taxa as circumpolar, uncovering large amounts of unexpected diversity. In this study,we investigate the genetic diversity and population structuring of G. antarctica. Using double digest restriction-site associated DNA sequencing, we obtain a set of 4301 SNP markers from across the genome for a set of four populations spanning a large portion of this taxa's range distribution. This data set reveals clear evidence of strong population structuring across the Southern Ocean, at both large and small geographic scales. We reject the hypothesis of panmixia within the geographic region investigated. The data presents evidence of the influence of both the Antarctic Circumpolar Current and the last glacial maximum on the genetic structure of G. antarctica |
format |
Doctoral or Postdoctoral Thesis |
author |
Sasaki, Matthew C. |
author_facet |
Sasaki, Matthew C. |
author_sort |
Sasaki, Matthew C. |
title |
Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing |
title_short |
Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing |
title_full |
Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing |
title_fullStr |
Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing |
title_full_unstemmed |
Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing |
title_sort |
genetic structuring in a circum-antarctic taxon investigated using ddrad sequencing |
publisher |
eScholarship, University of California |
publishDate |
2015 |
url |
http://www.escholarship.org/uc/item/3z4692x7 http://n2t.net/ark:/20775/bb51212856 |
op_coverage |
1 PDF (xi, 48 pages) |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Sasaki, Matthew C.(2015). Genetic Structuring in a Circum-Antarctic Taxon Investigated using ddRAD Sequencing. UC San Diego: Retrieved from: http://www.escholarship.org/uc/item/3z4692x7 |
op_relation |
http://www.escholarship.org/uc/item/3z4692x7 qt3z4692x7 http://n2t.net/ark:/20775/bb51212856 |
op_rights |
public |
_version_ |
1766021167492104192 |