SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines
In species that form dense populations, major disturbance events are expected to increase the chance of establishment for immigrant lineages. Real-time tests of the impact of disturbance on patterns of genetic structure are, however, scarce. Central to testing these concepts is determining the pool...
Published in: | Molecular Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Blackwell Publishing Ltd
2023
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Online Access: | http://hdl.handle.net/1885/282690 https://doi.org/10.1111/mec.15303 https://openresearch-repository.anu.edu.au/bitstream/1885/282690/3/Molecular%20Ecology%20-%202019%20-%20Peters%20-%20SNP%20analyses%20reveal%20a%20diverse%20pool%20of%20potential%20colonists%20to%20earthquake%e2%80%90uplifted.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/282690/6/JPeters_MolEcol_paper.pdf.jpg |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/282690 2023-05-15T13:33:17+02:00 SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines Peters, Johnette Waters, Jonathan Dutoit, Ludovic Fraser, Ceridwen 2023-01-12T00:11:47Z application/pdf http://hdl.handle.net/1885/282690 https://doi.org/10.1111/mec.15303 https://openresearch-repository.anu.edu.au/bitstream/1885/282690/3/Molecular%20Ecology%20-%202019%20-%20Peters%20-%20SNP%20analyses%20reveal%20a%20diverse%20pool%20of%20potential%20colonists%20to%20earthquake%e2%80%90uplifted.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/282690/6/JPeters_MolEcol_paper.pdf.jpg en_AU eng Blackwell Publishing Ltd http://purl.org/au-research/grants/arc/FT170100281 0962-1083 http://hdl.handle.net/1885/282690 doi:10.1111/mec.15303 https://openresearch-repository.anu.edu.au/bitstream/1885/282690/3/Molecular%20Ecology%20-%202019%20-%20Peters%20-%20SNP%20analyses%20reveal%20a%20diverse%20pool%20of%20potential%20colonists%20to%20earthquake%e2%80%90uplifted.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/282690/6/JPeters_MolEcol_paper.pdf.jpg © 2019 John Wiley & Sons Ltd Molecular Ecology disturbance genotyping-by-sequencing kelp rafting recovery Journal article 2023 ftanucanberra https://doi.org/10.1111/mec.15303 2023-01-30T23:15:26Z In species that form dense populations, major disturbance events are expected to increase the chance of establishment for immigrant lineages. Real-time tests of the impact of disturbance on patterns of genetic structure are, however, scarce. Central to testing these concepts is determining the pool of potential immigrants dispersing into a disturbed area. In 2016, a 7.8 magnitude earthquake occurred on the South Island of New Zealand. Affecting approximately 100 km of coastline, this quake caused extensive uplift (several metres high), extirpating many intertidal popula-tions, including keystone intertidal kelp species. Following the uplift, we set out to determine the geographic origins of detached kelp specimens which rafted into the disturbed zone. Specifically, we used genotyping-by-sequencing (GBS) approaches to compare beach-cast southern bull-kelp (Durvillaea antarctica and Durvillaea poha) samples to established populations throughout the species' ranges, and thus infer the geographic origins of potential colonists reaching the disturbed coast. Our find-ings revealed an ongoing supply of diverse lineages dispersing to the newly uplifted coastline, suggesting potential for establishment of “exotic” lineages following distur-bance. Furthermore, we found that some drifting individuals of each species came from far-distant regions, some >1,200 km away. These results show that diverse line-ages – in many cases from very distant sources – can compete for new space in the wake of an exceptional disturbance event, illustrating the potential of long-distance dispersal as a key mechanism for reassembly of coastal ecosystems. Furthermore, our findings demonstrate that high-resolution genomic baselines can be used to robustly assign the provenance of dispersing individuals. Australian Research Council Future Fellowship, Grant/Award Number: FT170100281; Rutherford Discovery Fellowship, Grant/Award Number: UOO1803 Article in Journal/Newspaper Antarc* Antarctica Australian National University: ANU Digital Collections New Zealand Molecular Ecology 29 1 149 159 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
English |
topic |
disturbance genotyping-by-sequencing kelp rafting recovery |
spellingShingle |
disturbance genotyping-by-sequencing kelp rafting recovery Peters, Johnette Waters, Jonathan Dutoit, Ludovic Fraser, Ceridwen SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines |
topic_facet |
disturbance genotyping-by-sequencing kelp rafting recovery |
description |
In species that form dense populations, major disturbance events are expected to increase the chance of establishment for immigrant lineages. Real-time tests of the impact of disturbance on patterns of genetic structure are, however, scarce. Central to testing these concepts is determining the pool of potential immigrants dispersing into a disturbed area. In 2016, a 7.8 magnitude earthquake occurred on the South Island of New Zealand. Affecting approximately 100 km of coastline, this quake caused extensive uplift (several metres high), extirpating many intertidal popula-tions, including keystone intertidal kelp species. Following the uplift, we set out to determine the geographic origins of detached kelp specimens which rafted into the disturbed zone. Specifically, we used genotyping-by-sequencing (GBS) approaches to compare beach-cast southern bull-kelp (Durvillaea antarctica and Durvillaea poha) samples to established populations throughout the species' ranges, and thus infer the geographic origins of potential colonists reaching the disturbed coast. Our find-ings revealed an ongoing supply of diverse lineages dispersing to the newly uplifted coastline, suggesting potential for establishment of “exotic” lineages following distur-bance. Furthermore, we found that some drifting individuals of each species came from far-distant regions, some >1,200 km away. These results show that diverse line-ages – in many cases from very distant sources – can compete for new space in the wake of an exceptional disturbance event, illustrating the potential of long-distance dispersal as a key mechanism for reassembly of coastal ecosystems. Furthermore, our findings demonstrate that high-resolution genomic baselines can be used to robustly assign the provenance of dispersing individuals. Australian Research Council Future Fellowship, Grant/Award Number: FT170100281; Rutherford Discovery Fellowship, Grant/Award Number: UOO1803 |
format |
Article in Journal/Newspaper |
author |
Peters, Johnette Waters, Jonathan Dutoit, Ludovic Fraser, Ceridwen |
author_facet |
Peters, Johnette Waters, Jonathan Dutoit, Ludovic Fraser, Ceridwen |
author_sort |
Peters, Johnette |
title |
SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines |
title_short |
SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines |
title_full |
SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines |
title_fullStr |
SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines |
title_full_unstemmed |
SNP analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines |
title_sort |
snp analyses reveal a diverse pool of potential colonists to earthquake-uplifted coastlines |
publisher |
Blackwell Publishing Ltd |
publishDate |
2023 |
url |
http://hdl.handle.net/1885/282690 https://doi.org/10.1111/mec.15303 https://openresearch-repository.anu.edu.au/bitstream/1885/282690/3/Molecular%20Ecology%20-%202019%20-%20Peters%20-%20SNP%20analyses%20reveal%20a%20diverse%20pool%20of%20potential%20colonists%20to%20earthquake%e2%80%90uplifted.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/282690/6/JPeters_MolEcol_paper.pdf.jpg |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Molecular Ecology |
op_relation |
http://purl.org/au-research/grants/arc/FT170100281 0962-1083 http://hdl.handle.net/1885/282690 doi:10.1111/mec.15303 https://openresearch-repository.anu.edu.au/bitstream/1885/282690/3/Molecular%20Ecology%20-%202019%20-%20Peters%20-%20SNP%20analyses%20reveal%20a%20diverse%20pool%20of%20potential%20colonists%20to%20earthquake%e2%80%90uplifted.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/282690/6/JPeters_MolEcol_paper.pdf.jpg |
op_rights |
© 2019 John Wiley & Sons Ltd |
op_doi |
https://doi.org/10.1111/mec.15303 |
container_title |
Molecular Ecology |
container_volume |
29 |
container_issue |
1 |
container_start_page |
149 |
op_container_end_page |
159 |
_version_ |
1766040945994760192 |