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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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/16501 2024-01-14T10:02:27+01:00 Genetic affinities between trans-oceanic populations of non-buoyant macroalgae in the high latitudes of the Southern Hemisphere Fraser, Ceridwen Zuccarello, Giuseppe C. Spencer, Hamish G. Salvatore, Laura C. Garcia, Gabriella R. Waters, Jonathan M. 12 pages http://hdl.handle.net/1885/16501 https://doi.org/10.1371/journal.pone.0069138 https://openresearch-repository.anu.edu.au/bitstream/1885/16501/4/Fraser%20et%20al%20Genetic%20affinities%20between.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/16501/7/01_Fraser_Genetic_affinities_between_2013.pdf.jpg unknown Public Library of Science 1932-6203 http://hdl.handle.net/1885/16501 doi:10.1371/journal.pone.0069138 https://openresearch-repository.anu.edu.au/bitstream/1885/16501/4/Fraser%20et%20al%20Genetic%20affinities%20between.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/16501/7/01_Fraser_Genetic_affinities_between_2013.pdf.jpg © 2013 Fraser et al. 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. PLoS ONE phylogeography seaweed ecological and environmental processes oceans and seas phylogeny Journal article ftanucanberra https://doi.org/10.1371/journal.pone.0069138 2023-12-15T09:37:32Z 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. This work was funded by New Zealand Marsden contract 07-UOO-099, Department of Zoology and University of Otago Research grants to JMW and CIF; a Shackleton Scholarship to CIF; an Allan Wilson Centre for Molecular Ecology and Evolution postdoctoral grant to CIF; Australian Antarctic Division AAS project #2914. Article in Journal/Newspaper Antarc* Antarctic Australian Antarctic Division Australian National University: ANU Digital Collections Antarctic The Antarctic Shackleton New Zealand Marsden ENVELOPE(66.067,66.067,-67.867,-67.867) PLoS ONE 8 7 e69138 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
phylogeography seaweed ecological and environmental processes oceans and seas phylogeny |
spellingShingle |
phylogeography seaweed ecological and environmental processes oceans and seas phylogeny Fraser, Ceridwen 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 |
topic_facet |
phylogeography seaweed ecological and environmental processes oceans and seas phylogeny |
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. This work was funded by New Zealand Marsden contract 07-UOO-099, Department of Zoology and University of Otago Research grants to JMW and CIF; a Shackleton Scholarship to CIF; an Allan Wilson Centre for Molecular Ecology and Evolution postdoctoral grant to CIF; Australian Antarctic Division AAS project #2914. |
format |
Article in Journal/Newspaper |
author |
Fraser, Ceridwen Zuccarello, Giuseppe C. Spencer, Hamish G. Salvatore, Laura C. Garcia, Gabriella R. Waters, Jonathan M. |
author_facet |
Fraser, Ceridwen Zuccarello, Giuseppe C. Spencer, Hamish G. Salvatore, Laura C. Garcia, Gabriella R. Waters, Jonathan M. |
author_sort |
Fraser, Ceridwen |
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 |
url |
http://hdl.handle.net/1885/16501 https://doi.org/10.1371/journal.pone.0069138 https://openresearch-repository.anu.edu.au/bitstream/1885/16501/4/Fraser%20et%20al%20Genetic%20affinities%20between.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/16501/7/01_Fraser_Genetic_affinities_between_2013.pdf.jpg |
long_lat |
ENVELOPE(66.067,66.067,-67.867,-67.867) |
geographic |
Antarctic The Antarctic Shackleton New Zealand Marsden |
geographic_facet |
Antarctic The Antarctic Shackleton New Zealand Marsden |
genre |
Antarc* Antarctic Australian Antarctic Division |
genre_facet |
Antarc* Antarctic Australian Antarctic Division |
op_source |
PLoS ONE |
op_relation |
1932-6203 http://hdl.handle.net/1885/16501 doi:10.1371/journal.pone.0069138 https://openresearch-repository.anu.edu.au/bitstream/1885/16501/4/Fraser%20et%20al%20Genetic%20affinities%20between.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/16501/7/01_Fraser_Genetic_affinities_between_2013.pdf.jpg |
op_rights |
© 2013 Fraser et al. 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_doi |
https://doi.org/10.1371/journal.pone.0069138 |
container_title |
PLoS ONE |
container_volume |
8 |
container_issue |
7 |
container_start_page |
e69138 |
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