Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway
Understanding phylogeographic origins and hybridization of species are crucial when proposing effective management strategies in disturbed habitats. The longnose sucker in Labrador is an interesting species as the eastern part of the range in North America has not been studied and Labrador has recen...
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Memorial University of Newfoundland
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ftmemorialuniv:oai:research.library.mun.ca:15579 2023-10-01T03:55:22+02:00 Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway Langille, Barbara 2014-10 application/pdf https://research.library.mun.ca/15579/ https://research.library.mun.ca/15579/1/revised%20date%20BarbaraLangilleFullThesis.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/15579/1/revised%20date%20BarbaraLangilleFullThesis.pdf Langille, Barbara <https://research.library.mun.ca/view/creator_az/Langille=3ABarbara=3A=3A.html> (2014) Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 2014 ftmemorialuniv 2023-09-03T06:50:18Z Understanding phylogeographic origins and hybridization of species are crucial when proposing effective management strategies in disturbed habitats. The longnose sucker in Labrador is an interesting species as the eastern part of the range in North America has not been studied and Labrador has recently undergone the construction of the Trans-Labrador Highway (TLH) with no assessment of the influence of this disturbance on the longnose sucker. To document genetic diversity, post-glacial dispersal, and putative hybridization with the white sucker, mitochondrial DNA and microsatellites were analysed, leading to evidence for one main glacial refugial source of longnose suckers within Labrador, the Atlantic refugium, with possible minor contributions from the Beringian and Mississippian. Significant population structure among regions and among lakes was inferred. Only four putative hybrid suckers were identified suggesting that hybridization is lower than among other catostomid species. Hence the TLH is likely not influencing hybridization of longnose and white suckers in Labrador. Thesis Catostomus catostomus Longnose sucker Memorial University of Newfoundland: Research Repository |
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Memorial University of Newfoundland: Research Repository |
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English |
description |
Understanding phylogeographic origins and hybridization of species are crucial when proposing effective management strategies in disturbed habitats. The longnose sucker in Labrador is an interesting species as the eastern part of the range in North America has not been studied and Labrador has recently undergone the construction of the Trans-Labrador Highway (TLH) with no assessment of the influence of this disturbance on the longnose sucker. To document genetic diversity, post-glacial dispersal, and putative hybridization with the white sucker, mitochondrial DNA and microsatellites were analysed, leading to evidence for one main glacial refugial source of longnose suckers within Labrador, the Atlantic refugium, with possible minor contributions from the Beringian and Mississippian. Significant population structure among regions and among lakes was inferred. Only four putative hybrid suckers were identified suggesting that hybridization is lower than among other catostomid species. Hence the TLH is likely not influencing hybridization of longnose and white suckers in Labrador. |
format |
Thesis |
author |
Langille, Barbara |
spellingShingle |
Langille, Barbara Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway |
author_facet |
Langille, Barbara |
author_sort |
Langille, Barbara |
title |
Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway |
title_short |
Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway |
title_full |
Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway |
title_fullStr |
Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway |
title_full_unstemmed |
Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway |
title_sort |
mitochondrial dna and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (catostomus catostomus) in labrador: implications for conservation and management near the trans-labrador highway |
publisher |
Memorial University of Newfoundland |
publishDate |
2014 |
url |
https://research.library.mun.ca/15579/ https://research.library.mun.ca/15579/1/revised%20date%20BarbaraLangilleFullThesis.pdf |
genre |
Catostomus catostomus Longnose sucker |
genre_facet |
Catostomus catostomus Longnose sucker |
op_relation |
https://research.library.mun.ca/15579/1/revised%20date%20BarbaraLangilleFullThesis.pdf Langille, Barbara <https://research.library.mun.ca/view/creator_az/Langille=3ABarbara=3A=3A.html> (2014) Mitochondrial DNA and microsatellite analysis of post-glacial dispersal and hybridization of longnose suckers (Catostomus catostomus) in Labrador: implications for conservation and management near the Trans-Labrador Highway. Masters thesis, Memorial University of Newfoundland. |
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thesis_license |
_version_ |
1778523793222795264 |