Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species
Many macroalgae exhibit considerable intraspecific morphological variation, but whether such variation reflects phenotypic plasticity or underlying genetic differences is often poorly understood. We quantified both morphological and genetic variation of 96 plants from seven field sites across easter...
Published in: | Journal of Phycology |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/79822 2024-01-14T10:02:21+01:00 Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species Hay, Cameron H. Spencer, Hamish Waters, Jonathan Fraser, Ceridwen http://hdl.handle.net/1885/79822 https://doi.org/10.1111/j.1529-8817.2009.00658.x https://openresearch-repository.anu.edu.au/bitstream/1885/79822/5/09_Fraser_-_Genetic_and_Morphological.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/79822/7/01_Fraser_Genetic_and_morphological_2009.pdf.jpg unknown Blackwell Publishing Ltd 0022-3646 http://hdl.handle.net/1885/79822 doi:10.1111/j.1529-8817.2009.00658.x https://openresearch-repository.anu.edu.au/bitstream/1885/79822/5/09_Fraser_-_Genetic_and_Morphological.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/79822/7/01_Fraser_Genetic_and_morphological_2009.pdf.jpg Journal of Phycology Keywords: Durvillaea antarctica Phaeophyceae 18S Bull kelp COI Cryptic species Durvillaea antarctica Phaeophyceae RbcL Journal article ftanucanberra https://doi.org/10.1111/j.1529-8817.2009.00658.x 2023-12-15T09:34:48Z Many macroalgae exhibit considerable intraspecific morphological variation, but whether such variation reflects phenotypic plasticity or underlying genetic differences is often poorly understood. We quantified both morphological and genetic variation of 96 plants from seven field sites across eastern South Island, New Zealand, to assess genetic differences between morphotypes of the southern bull kelp Durvillaea antarctica (Cham.) Har. Consistent DNA sequence differentiation across mitochondrial, plastid, and nuclear loci was correlated with two broadly sympatric morphotypes: "cape" and "thonged." These ecologically, morphologically, and genetically distinct bull-kelp lineages were previously considered to be environmentally determined phenotypes with no underlying genetic basis. Interestingly, the sheltered "cape" lineage appears essentially genetically uniform across its South Island range, whereas the exposed "thonged" lineage exhibits marked phylogeographic structure across its range. Results suggest that D. antarctica in New Zealand comprises two reproductively isolated species. Article in Journal/Newspaper Antarc* Antarctica Australian National University: ANU Digital Collections New Zealand Journal of Phycology 45 2 436 443 |
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Open Polar |
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Australian National University: ANU Digital Collections |
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ftanucanberra |
language |
unknown |
topic |
Keywords: Durvillaea antarctica Phaeophyceae 18S Bull kelp COI Cryptic species Durvillaea antarctica Phaeophyceae RbcL |
spellingShingle |
Keywords: Durvillaea antarctica Phaeophyceae 18S Bull kelp COI Cryptic species Durvillaea antarctica Phaeophyceae RbcL Hay, Cameron H. Spencer, Hamish Waters, Jonathan Fraser, Ceridwen Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species |
topic_facet |
Keywords: Durvillaea antarctica Phaeophyceae 18S Bull kelp COI Cryptic species Durvillaea antarctica Phaeophyceae RbcL |
description |
Many macroalgae exhibit considerable intraspecific morphological variation, but whether such variation reflects phenotypic plasticity or underlying genetic differences is often poorly understood. We quantified both morphological and genetic variation of 96 plants from seven field sites across eastern South Island, New Zealand, to assess genetic differences between morphotypes of the southern bull kelp Durvillaea antarctica (Cham.) Har. Consistent DNA sequence differentiation across mitochondrial, plastid, and nuclear loci was correlated with two broadly sympatric morphotypes: "cape" and "thonged." These ecologically, morphologically, and genetically distinct bull-kelp lineages were previously considered to be environmentally determined phenotypes with no underlying genetic basis. Interestingly, the sheltered "cape" lineage appears essentially genetically uniform across its South Island range, whereas the exposed "thonged" lineage exhibits marked phylogeographic structure across its range. Results suggest that D. antarctica in New Zealand comprises two reproductively isolated species. |
format |
Article in Journal/Newspaper |
author |
Hay, Cameron H. Spencer, Hamish Waters, Jonathan Fraser, Ceridwen |
author_facet |
Hay, Cameron H. Spencer, Hamish Waters, Jonathan Fraser, Ceridwen |
author_sort |
Hay, Cameron H. |
title |
Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species |
title_short |
Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species |
title_full |
Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species |
title_fullStr |
Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species |
title_full_unstemmed |
Genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: Durvillaeales) in New Zealand reveal cryptic species |
title_sort |
genetic and morphological analyses of the southern bull kelp durvillaea antarctica (phaeophyceae: durvillaeales) in new zealand reveal cryptic species |
publisher |
Blackwell Publishing Ltd |
url |
http://hdl.handle.net/1885/79822 https://doi.org/10.1111/j.1529-8817.2009.00658.x https://openresearch-repository.anu.edu.au/bitstream/1885/79822/5/09_Fraser_-_Genetic_and_Morphological.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/79822/7/01_Fraser_Genetic_and_morphological_2009.pdf.jpg |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Journal of Phycology |
op_relation |
0022-3646 http://hdl.handle.net/1885/79822 doi:10.1111/j.1529-8817.2009.00658.x https://openresearch-repository.anu.edu.au/bitstream/1885/79822/5/09_Fraser_-_Genetic_and_Morphological.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/79822/7/01_Fraser_Genetic_and_morphological_2009.pdf.jpg |
op_doi |
https://doi.org/10.1111/j.1529-8817.2009.00658.x |
container_title |
Journal of Phycology |
container_volume |
45 |
container_issue |
2 |
container_start_page |
436 |
op_container_end_page |
443 |
_version_ |
1788057338040549376 |