Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean
The Western Antarctic Peninsula (WAP) region, which is experiencing increased sea surface temperatures, is a highly productive region of the Southern Ocean, supporting dense populations of the salp Salpa thompsoni and krill Euphuasia superba. Ecological data suggest that important species like salps...
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ftunivconn:oai:opencommons.uconn.edu:dissertations-6838 2023-05-15T13:53:41+02:00 Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean Batta Lona, Paola G 2014-12-10T08:00:00Z application/pdf https://opencommons.uconn.edu/dissertations/625 https://opencommons.uconn.edu/cgi/viewcontent.cgi?article=6838&context=dissertations unknown OpenCommons@UConn https://opencommons.uconn.edu/dissertations/625 https://opencommons.uconn.edu/cgi/viewcontent.cgi?article=6838&context=dissertations Doctoral Dissertations S. thompsoni transcriptome Southern Ocean Krill text 2014 ftunivconn 2022-07-11T18:41:16Z The Western Antarctic Peninsula (WAP) region, which is experiencing increased sea surface temperatures, is a highly productive region of the Southern Ocean, supporting dense populations of the salp Salpa thompsoni and krill Euphuasia superba. Ecological data suggest that important species like salps and krill are being affected by climate change and that this effects on these planktonic species will have considerable consequences for the balance of the Southern Ocean ecosystem. The Antarctic krill E. superba is one of the best-studied marine zooplankton species in terms of population genetic diversity and structure. However few studies have discriminated life stages and examined sub-regional scale population genetic variation. Analysis of molecular variation revealed no significant differentiation between years, however larger levels of differentiation were observed among samples when furcilia larval stages were analyzed separately, and among life stages in the 2001 collection from Marguerite Bay. On the other hand the Southern Ocean S. thompsoni is subject to variable environmental and biological conditions, as well as the marked seasonal variability and long-term climate change. Knowledge of the physiology and molecular biology is imminent; one of the approaches that can be used is whole genome and transcriptome sequencing. The draft genome provided the first basis for the construction of an annotated gene catalog for S. thompsoni, a much-needed tool to understand the physiological response to environmental condition at a molecular level. Transcriptome analysis showed clear differentiation of gene expression patterns for a wide diversity of genes in salp samples from different regions, seasons, and samples. Text Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Southern Ocean University of Connecticut (UConn): DigitalCommons@UConn Antarctic Antarctic Peninsula Marguerite ENVELOPE(141.378,141.378,-66.787,-66.787) Marguerite Bay ENVELOPE(-68.000,-68.000,-68.500,-68.500) Southern Ocean The Antarctic |
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University of Connecticut (UConn): DigitalCommons@UConn |
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topic |
S. thompsoni transcriptome Southern Ocean Krill |
spellingShingle |
S. thompsoni transcriptome Southern Ocean Krill Batta Lona, Paola G Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean |
topic_facet |
S. thompsoni transcriptome Southern Ocean Krill |
description |
The Western Antarctic Peninsula (WAP) region, which is experiencing increased sea surface temperatures, is a highly productive region of the Southern Ocean, supporting dense populations of the salp Salpa thompsoni and krill Euphuasia superba. Ecological data suggest that important species like salps and krill are being affected by climate change and that this effects on these planktonic species will have considerable consequences for the balance of the Southern Ocean ecosystem. The Antarctic krill E. superba is one of the best-studied marine zooplankton species in terms of population genetic diversity and structure. However few studies have discriminated life stages and examined sub-regional scale population genetic variation. Analysis of molecular variation revealed no significant differentiation between years, however larger levels of differentiation were observed among samples when furcilia larval stages were analyzed separately, and among life stages in the 2001 collection from Marguerite Bay. On the other hand the Southern Ocean S. thompsoni is subject to variable environmental and biological conditions, as well as the marked seasonal variability and long-term climate change. Knowledge of the physiology and molecular biology is imminent; one of the approaches that can be used is whole genome and transcriptome sequencing. The draft genome provided the first basis for the construction of an annotated gene catalog for S. thompsoni, a much-needed tool to understand the physiological response to environmental condition at a molecular level. Transcriptome analysis showed clear differentiation of gene expression patterns for a wide diversity of genes in salp samples from different regions, seasons, and samples. |
format |
Text |
author |
Batta Lona, Paola G |
author_facet |
Batta Lona, Paola G |
author_sort |
Batta Lona, Paola G |
title |
Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean |
title_short |
Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean |
title_full |
Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean |
title_fullStr |
Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean |
title_full_unstemmed |
Environmental Genomics and Transcriptomics of Salpa thompsoni and Population Genetic Variation of Euphausia superba in the Southern Ocean |
title_sort |
environmental genomics and transcriptomics of salpa thompsoni and population genetic variation of euphausia superba in the southern ocean |
publisher |
OpenCommons@UConn |
publishDate |
2014 |
url |
https://opencommons.uconn.edu/dissertations/625 https://opencommons.uconn.edu/cgi/viewcontent.cgi?article=6838&context=dissertations |
long_lat |
ENVELOPE(141.378,141.378,-66.787,-66.787) ENVELOPE(-68.000,-68.000,-68.500,-68.500) |
geographic |
Antarctic Antarctic Peninsula Marguerite Marguerite Bay Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Marguerite Marguerite Bay Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Euphausia superba Southern Ocean |
op_source |
Doctoral Dissertations |
op_relation |
https://opencommons.uconn.edu/dissertations/625 https://opencommons.uconn.edu/cgi/viewcontent.cgi?article=6838&context=dissertations |
_version_ |
1766259068062662656 |