Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis
Abstract Aim The opening of the Bering Strait initiated significant biotic interchange that is postulated to have played a major role in phylogeographical patterns of northern marine flora and fauna. In addition, the “species pump” hypothesis asserts that glaciation events promoted speciation due to...
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crwiley:10.1111/jbi.13504 2024-09-15T17:58:49+00:00 Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis Bringloe, Trevor T. Saunders, Gary W. Natural Sciences and Engineering Research Council of Canada 2019 http://dx.doi.org/10.1111/jbi.13504 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13504 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13504 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.13504 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Biogeography volume 46, issue 4, page 694-705 ISSN 0305-0270 1365-2699 journal-article 2019 crwiley https://doi.org/10.1111/jbi.13504 2024-08-27T04:27:59Z Abstract Aim The opening of the Bering Strait initiated significant biotic interchange that is postulated to have played a major role in phylogeographical patterns of northern marine flora and fauna. In addition, the “species pump” hypothesis asserts that glaciation events promoted speciation due to repeated isolation of populations over the past 2.6 million years. Here, trans‐Arctic speciation events in red marine macroalgae (Florideophyceae) were assessed using time‐calibrated phylogenies, and the applicability of the “species pump” hypothesis was considered. Location Species records and sequence data for trans‐arctic genera of marine macroalgae were amalgamated and supplemented with sampling from the Northwest Atlantic, Northern Alaska (Beaufort Sea), Norway, and Nome, Alaska (Bering Sea; 2014–2017). Methods Bayesian and maximum likelihood phylogenies were variously built using the 5′ end of the cytochrome c oxidase subunit I gene ( COI ‐5P), and/or the full‐length nuclear internal transcribed spacer region ( ITS ), and/or the ribulose‐1 5‐biphosphate carboxylase large subunit gene ( rbc L), and nodes were timed using calibrated COI ‐5P and rbc L molecular clocks. The final dataset represented approximately 184 species, broadly representing 14 trans‐arctic lineages. Results Pacific to Atlantic migration and subsequent speciation was inferred in 11 cases, whereas the opposite scenario, atlantic to pacific, was inferred once; only three speciation events appeared to occur during the Pleistocene. Main conclusions Our results are in agreement with previous studies in that trans‐arctic speciation events postdated the opening of the Bering Strait with a clear pacific to atlantic bias. Evidence for the “species pump” (as applied to trans‐arctic interchange) was lacking given the frequency of trans‐arctic speciation events was not amplified during the Pleistocene. Article in Journal/Newspaper Beaufort Sea Bering Sea Bering Strait Nome Northwest Atlantic Alaska Wiley Online Library Journal of Biogeography 46 4 694 705 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Aim The opening of the Bering Strait initiated significant biotic interchange that is postulated to have played a major role in phylogeographical patterns of northern marine flora and fauna. In addition, the “species pump” hypothesis asserts that glaciation events promoted speciation due to repeated isolation of populations over the past 2.6 million years. Here, trans‐Arctic speciation events in red marine macroalgae (Florideophyceae) were assessed using time‐calibrated phylogenies, and the applicability of the “species pump” hypothesis was considered. Location Species records and sequence data for trans‐arctic genera of marine macroalgae were amalgamated and supplemented with sampling from the Northwest Atlantic, Northern Alaska (Beaufort Sea), Norway, and Nome, Alaska (Bering Sea; 2014–2017). Methods Bayesian and maximum likelihood phylogenies were variously built using the 5′ end of the cytochrome c oxidase subunit I gene ( COI ‐5P), and/or the full‐length nuclear internal transcribed spacer region ( ITS ), and/or the ribulose‐1 5‐biphosphate carboxylase large subunit gene ( rbc L), and nodes were timed using calibrated COI ‐5P and rbc L molecular clocks. The final dataset represented approximately 184 species, broadly representing 14 trans‐arctic lineages. Results Pacific to Atlantic migration and subsequent speciation was inferred in 11 cases, whereas the opposite scenario, atlantic to pacific, was inferred once; only three speciation events appeared to occur during the Pleistocene. Main conclusions Our results are in agreement with previous studies in that trans‐arctic speciation events postdated the opening of the Bering Strait with a clear pacific to atlantic bias. Evidence for the “species pump” (as applied to trans‐arctic interchange) was lacking given the frequency of trans‐arctic speciation events was not amplified during the Pleistocene. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Bringloe, Trevor T. Saunders, Gary W. |
spellingShingle |
Bringloe, Trevor T. Saunders, Gary W. Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis |
author_facet |
Bringloe, Trevor T. Saunders, Gary W. |
author_sort |
Bringloe, Trevor T. |
title |
Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis |
title_short |
Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis |
title_full |
Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis |
title_fullStr |
Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis |
title_full_unstemmed |
Trans‐Arctic speciation of Florideophyceae (Rhodophyta) since the opening of the Bering Strait, with consideration of the “species pump” hypothesis |
title_sort |
trans‐arctic speciation of florideophyceae (rhodophyta) since the opening of the bering strait, with consideration of the “species pump” hypothesis |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/jbi.13504 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13504 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13504 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jbi.13504 |
genre |
Beaufort Sea Bering Sea Bering Strait Nome Northwest Atlantic Alaska |
genre_facet |
Beaufort Sea Bering Sea Bering Strait Nome Northwest Atlantic Alaska |
op_source |
Journal of Biogeography volume 46, issue 4, page 694-705 ISSN 0305-0270 1365-2699 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jbi.13504 |
container_title |
Journal of Biogeography |
container_volume |
46 |
container_issue |
4 |
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694 |
op_container_end_page |
705 |
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1810435791842705408 |