Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha)
Pink salmon, the most abundant Pacific salmon, have an obligate 2-year life cycle that leads to reproductively isolated even- and odd-year lineages. Using new and existing data, we examined the genetic structure of both lineages across their distributional range by genotyping 16 681 single-nucleotid...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/cjfas-2017-0023 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0023 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0023 |
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crcansciencepubl:10.1139/cjfas-2017-0023 2024-09-15T18:28:41+00:00 Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha) Tarpey, Carolyn M. Seeb, James E. McKinney, Garrett J. Templin, William D. Bugaev, Alexander Sato, Shunpei Seeb, Lisa W. 2018 http://dx.doi.org/10.1139/cjfas-2017-0023 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0023 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0023 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 75, issue 6, page 987-997 ISSN 0706-652X 1205-7533 journal-article 2018 crcansciencepubl https://doi.org/10.1139/cjfas-2017-0023 2024-07-18T04:13:38Z Pink salmon, the most abundant Pacific salmon, have an obligate 2-year life cycle that leads to reproductively isolated even- and odd-year lineages. Using new and existing data, we examined the genetic structure of both lineages across their distributional range by genotyping 16 681 single-nucleotide polymorphisms for 383 individuals originating from seven pairs of even- and odd-year populations. Distinct differences in standing pools of genetic variation were identified between the lineages; we observed higher levels of heterozygosity, allelic richness, and significantly more private alleles in the odd-year lineage. However, the patterns of population structure were concordant between lineages: the Asian and northern Alaska populations displayed little differentiation but differed significantly from populations in southcentral Alaska and the Pacific Northwest. Our population structure results, in the context of known paleoecological information, suggest that both lineages occupied a northern Beringial refugium as well as a Cascadian refugium in North America during the Last Glacial Maximum. These results highlight the influence of historical patterns of habitat availability on contemporary population structure and support the hypothesis of a pre-glacial origin of the lineages. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon Alaska Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 75 6 987 997 |
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Open Polar |
collection |
Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Pink salmon, the most abundant Pacific salmon, have an obligate 2-year life cycle that leads to reproductively isolated even- and odd-year lineages. Using new and existing data, we examined the genetic structure of both lineages across their distributional range by genotyping 16 681 single-nucleotide polymorphisms for 383 individuals originating from seven pairs of even- and odd-year populations. Distinct differences in standing pools of genetic variation were identified between the lineages; we observed higher levels of heterozygosity, allelic richness, and significantly more private alleles in the odd-year lineage. However, the patterns of population structure were concordant between lineages: the Asian and northern Alaska populations displayed little differentiation but differed significantly from populations in southcentral Alaska and the Pacific Northwest. Our population structure results, in the context of known paleoecological information, suggest that both lineages occupied a northern Beringial refugium as well as a Cascadian refugium in North America during the Last Glacial Maximum. These results highlight the influence of historical patterns of habitat availability on contemporary population structure and support the hypothesis of a pre-glacial origin of the lineages. |
format |
Article in Journal/Newspaper |
author |
Tarpey, Carolyn M. Seeb, James E. McKinney, Garrett J. Templin, William D. Bugaev, Alexander Sato, Shunpei Seeb, Lisa W. |
spellingShingle |
Tarpey, Carolyn M. Seeb, James E. McKinney, Garrett J. Templin, William D. Bugaev, Alexander Sato, Shunpei Seeb, Lisa W. Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha) |
author_facet |
Tarpey, Carolyn M. Seeb, James E. McKinney, Garrett J. Templin, William D. Bugaev, Alexander Sato, Shunpei Seeb, Lisa W. |
author_sort |
Tarpey, Carolyn M. |
title |
Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha) |
title_short |
Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha) |
title_full |
Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha) |
title_fullStr |
Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha) |
title_full_unstemmed |
Single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( Oncorhynchus gorbuscha) |
title_sort |
single-nucleotide polymorphism data describe contemporary population structure and diversity in allochronic lineages of pink salmon ( oncorhynchus gorbuscha) |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
http://dx.doi.org/10.1139/cjfas-2017-0023 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2017-0023 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2017-0023 |
genre |
Oncorhynchus gorbuscha Pink salmon Alaska |
genre_facet |
Oncorhynchus gorbuscha Pink salmon Alaska |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 75, issue 6, page 987-997 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2017-0023 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
75 |
container_issue |
6 |
container_start_page |
987 |
op_container_end_page |
997 |
_version_ |
1810470142615748608 |