Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere
Marine biologists and biogeographers have long been puzzled by apparently non-dispersive coastal taxa that nonetheless have extensive transoceanic distributions. We here carried out a broad-scale phylogeographic study to test whether two widespread Southern Hemisphere species of non-buoyant littoral...
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ftpubmed:oai:pubmedcentral.nih.gov:3718832 2023-05-15T13:59:46+02:00 Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere Fraser, Ceridwen I. Zuccarello, Giuseppe C. Spencer, Hamish G. Salvatore, Laura C. Garcia, Gabriella R. Waters, Jonathan M. 2013-07-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718832 http://www.ncbi.nlm.nih.gov/pubmed/23894421 https://doi.org/10.1371/journal.pone.0069138 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718832 http://www.ncbi.nlm.nih.gov/pubmed/23894421 http://dx.doi.org/10.1371/journal.pone.0069138 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2013 ftpubmed https://doi.org/10.1371/journal.pone.0069138 2013-09-05T02:48:12Z Marine biologists and biogeographers have long been puzzled by apparently non-dispersive coastal taxa that nonetheless have extensive transoceanic distributions. We here carried out a broad-scale phylogeographic study to test whether two widespread Southern Hemisphere species of non-buoyant littoral macroalgae are capable of long-distance dispersal. Samples were collected from along the coasts of southern Chile, New Zealand and several subAntarctic islands, with the focus on high latitude populations in the path of the Antarctic Circumpolar Current or West Wind Drift. We targeted two widespread littoral macroalgal species: the brown alga Adenocystisutricularis (Ectocarpales, Heterokontophyta) and the red alga Bostrychiaintricata (Ceramiales, Rhodophyta). Phylogenetic analyses were performed using partial mitochondrial (COI), chloroplast (rbcL) and ribosomal nuclear (LSU / 28S) DNA sequence data. Numerous deeply-divergent clades were resolved across all markers in each of the target species, but close phylogenetic relationships – even shared haplotypes – were observed among some populations separated by large oceanic distances. Despite not being particularly buoyant, both Adenocystisutricularis and Bostrychiaintricata thus show genetic signatures of recent dispersal across vast oceanic distances, presumably by attachment to floating substrata such as wood or buoyant macroalgae. Text Antarc* Antarctic PubMed Central (PMC) Antarctic New Zealand The Antarctic PLoS ONE 8 7 e69138 |
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English |
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Research Article Fraser, Ceridwen I. Zuccarello, Giuseppe C. Spencer, Hamish G. Salvatore, Laura C. Garcia, Gabriella R. Waters, Jonathan M. Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere |
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Research Article |
description |
Marine biologists and biogeographers have long been puzzled by apparently non-dispersive coastal taxa that nonetheless have extensive transoceanic distributions. We here carried out a broad-scale phylogeographic study to test whether two widespread Southern Hemisphere species of non-buoyant littoral macroalgae are capable of long-distance dispersal. Samples were collected from along the coasts of southern Chile, New Zealand and several subAntarctic islands, with the focus on high latitude populations in the path of the Antarctic Circumpolar Current or West Wind Drift. We targeted two widespread littoral macroalgal species: the brown alga Adenocystisutricularis (Ectocarpales, Heterokontophyta) and the red alga Bostrychiaintricata (Ceramiales, Rhodophyta). Phylogenetic analyses were performed using partial mitochondrial (COI), chloroplast (rbcL) and ribosomal nuclear (LSU / 28S) DNA sequence data. Numerous deeply-divergent clades were resolved across all markers in each of the target species, but close phylogenetic relationships – even shared haplotypes – were observed among some populations separated by large oceanic distances. Despite not being particularly buoyant, both Adenocystisutricularis and Bostrychiaintricata thus show genetic signatures of recent dispersal across vast oceanic distances, presumably by attachment to floating substrata such as wood or buoyant macroalgae. |
format |
Text |
author |
Fraser, Ceridwen I. Zuccarello, Giuseppe C. Spencer, Hamish G. Salvatore, Laura C. Garcia, Gabriella R. Waters, Jonathan M. |
author_facet |
Fraser, Ceridwen I. Zuccarello, Giuseppe C. Spencer, Hamish G. Salvatore, Laura C. Garcia, Gabriella R. Waters, Jonathan M. |
author_sort |
Fraser, Ceridwen I. |
title |
Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere |
title_short |
Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere |
title_full |
Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere |
title_fullStr |
Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere |
title_full_unstemmed |
Genetic Affinities between Trans-Oceanic Populations of Non-Buoyant Macroalgae in the High Latitudes of the Southern Hemisphere |
title_sort |
genetic affinities between trans-oceanic populations of non-buoyant macroalgae in the high latitudes of the southern hemisphere |
publisher |
Public Library of Science |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718832 http://www.ncbi.nlm.nih.gov/pubmed/23894421 https://doi.org/10.1371/journal.pone.0069138 |
geographic |
Antarctic New Zealand The Antarctic |
geographic_facet |
Antarctic New Zealand The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718832 http://www.ncbi.nlm.nih.gov/pubmed/23894421 http://dx.doi.org/10.1371/journal.pone.0069138 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0069138 |
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PLoS ONE |
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8 |
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7 |
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e69138 |
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