Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen
Abstract Population genetic analyses can evaluate how evolutionary processes shape diversity and inform conservation and management of imperiled species. Taimen (Hucho taimen), the world’s largest freshwater salmonid, is threatened, endangered, or extirpated across much of its range due to anthropog...
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ftdoajarticles:oai:doaj.org/article:425bc3e102ec4c9f83f37738b43f492f 2023-05-15T15:07:27+02:00 Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen Lanie M. Galland James B. Simmons Joshua P. Jahner Agusto R. Luzuriaga-Neira Matthew R. Sloat Sudeep Chandra Zeb Hogan Olaf P. Jensen Thomas L. Parchman 2021-10-01T00:00:00Z https://doi.org/10.1038/s41598-021-99530-3 https://doaj.org/article/425bc3e102ec4c9f83f37738b43f492f EN eng Nature Portfolio https://doi.org/10.1038/s41598-021-99530-3 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-99530-3 2045-2322 https://doaj.org/article/425bc3e102ec4c9f83f37738b43f492f Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021) Medicine R Science Q article 2021 ftdoajarticles https://doi.org/10.1038/s41598-021-99530-3 2022-12-31T07:59:37Z Abstract Population genetic analyses can evaluate how evolutionary processes shape diversity and inform conservation and management of imperiled species. Taimen (Hucho taimen), the world’s largest freshwater salmonid, is threatened, endangered, or extirpated across much of its range due to anthropogenic activity including overfishing and habitat degradation. We generated genetic data using high throughput sequencing of reduced representation libraries for taimen from multiple drainages in Mongolia and Russia. Nucleotide diversity estimates were within the range documented in other salmonids, suggesting moderate diversity despite widespread population declines. Similar to other recent studies, our analyses revealed pronounced differentiation among the Arctic (Selenge) and Pacific (Amur and Tugur) drainages, suggesting historical isolation among these systems. However, we found evidence for finer-scale structure within the Pacific drainages, including unexpected differentiation between tributaries and the mainstem of the Tugur River. Differentiation across the Amur and Tugur basins together with coalescent-based demographic modeling suggests the ancestors of Tugur tributary taimen likely diverged in the eastern Amur basin, prior to eventual colonization of the Tugur basin. Our results suggest the potential for differentiation of taimen at different geographic scales, and suggest more thorough geographic and genomic sampling may be needed to inform conservation and management of this iconic salmonid. Article in Journal/Newspaper Arctic Hucho taimen Directory of Open Access Journals: DOAJ Articles Arctic Pacific Scientific Reports 11 1 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
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Medicine R Science Q Lanie M. Galland James B. Simmons Joshua P. Jahner Agusto R. Luzuriaga-Neira Matthew R. Sloat Sudeep Chandra Zeb Hogan Olaf P. Jensen Thomas L. Parchman Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen |
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Medicine R Science Q |
description |
Abstract Population genetic analyses can evaluate how evolutionary processes shape diversity and inform conservation and management of imperiled species. Taimen (Hucho taimen), the world’s largest freshwater salmonid, is threatened, endangered, or extirpated across much of its range due to anthropogenic activity including overfishing and habitat degradation. We generated genetic data using high throughput sequencing of reduced representation libraries for taimen from multiple drainages in Mongolia and Russia. Nucleotide diversity estimates were within the range documented in other salmonids, suggesting moderate diversity despite widespread population declines. Similar to other recent studies, our analyses revealed pronounced differentiation among the Arctic (Selenge) and Pacific (Amur and Tugur) drainages, suggesting historical isolation among these systems. However, we found evidence for finer-scale structure within the Pacific drainages, including unexpected differentiation between tributaries and the mainstem of the Tugur River. Differentiation across the Amur and Tugur basins together with coalescent-based demographic modeling suggests the ancestors of Tugur tributary taimen likely diverged in the eastern Amur basin, prior to eventual colonization of the Tugur basin. Our results suggest the potential for differentiation of taimen at different geographic scales, and suggest more thorough geographic and genomic sampling may be needed to inform conservation and management of this iconic salmonid. |
format |
Article in Journal/Newspaper |
author |
Lanie M. Galland James B. Simmons Joshua P. Jahner Agusto R. Luzuriaga-Neira Matthew R. Sloat Sudeep Chandra Zeb Hogan Olaf P. Jensen Thomas L. Parchman |
author_facet |
Lanie M. Galland James B. Simmons Joshua P. Jahner Agusto R. Luzuriaga-Neira Matthew R. Sloat Sudeep Chandra Zeb Hogan Olaf P. Jensen Thomas L. Parchman |
author_sort |
Lanie M. Galland |
title |
Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen |
title_short |
Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen |
title_full |
Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen |
title_fullStr |
Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen |
title_full_unstemmed |
Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen |
title_sort |
hierarchical genetic structure and implications for conservation of the world’s largest salmonid, hucho taimen |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41598-021-99530-3 https://doaj.org/article/425bc3e102ec4c9f83f37738b43f492f |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Hucho taimen |
genre_facet |
Arctic Hucho taimen |
op_source |
Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021) |
op_relation |
https://doi.org/10.1038/s41598-021-99530-3 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-99530-3 2045-2322 https://doaj.org/article/425bc3e102ec4c9f83f37738b43f492f |
op_doi |
https://doi.org/10.1038/s41598-021-99530-3 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766338955411718144 |