RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway
Speciation encompasses a continuum over time from freely interbreeding populations to reproductively isolated species. Along this process, ecotypes – the result of local adaptation – may be on the road to new species. We investigated whether three autotetraploid Cochlearia officinalis ecotypes, adap...
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ftoslouniv:oai:www.duo.uio.no:10852/56752 2023-05-15T17:43:29+02:00 RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway Brandrud, Marie Kristine Paun, Ovidiu Lorenzo, Maria Teresa Nordal, Inger Brysting, Anne Krag 2017-07-31T15:57:09Z http://hdl.handle.net/10852/56752 http://urn.nb.no/URN:NBN:no-59221 https://doi.org/10.1038/s41598-017-05794-z EN eng http://urn.nb.no/URN:NBN:no-59221 Brandrud, Marie Kristine Paun, Ovidiu Lorenzo, Maria Teresa Nordal, Inger Brysting, Anne Krag . RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway. Scientific Reports. 2017, 7 http://hdl.handle.net/10852/56752 1483517 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=7&rft.spage=&rft.date=2017 Scientific Reports 7 http://dx.doi.org/10.1038/s41598-017-05794-z URN:NBN:no-59221 Fulltext https://www.duo.uio.no/bitstream/handle/10852/56752/2/Brandrud%2Bet%2Bal.%2B2017.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 2045-2322 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2017 ftoslouniv https://doi.org/10.1038/s41598-017-05794-z 2020-06-21T08:50:56Z Speciation encompasses a continuum over time from freely interbreeding populations to reproductively isolated species. Along this process, ecotypes – the result of local adaptation – may be on the road to new species. We investigated whether three autotetraploid Cochlearia officinalis ecotypes, adapted to different habitats (beach, estuary, spring), are genetically differentiated and result from parallel ecotypic divergence in two distinct geographical regions. We obtained genetic data from thousands of single nucleotide polymorphisms (SNPs) from restriction-site associated DNA sequencing (RADseq) and from six microsatellite markers for 12 populations to assess genetic divergence at ecotypic, geographic and population level. The genetic patterns support differentiation among ecotypes as suggested by morphology and ecology. The data fit a scenario where the ancestral beach ecotype has recurrently and polytopically given rise to the estuary and spring ecotypes. Several ecologically-relevant loci with consistent non-random segregating patterns are identified across the recurrent origins, in particular around genes related to salt stress. Despite being ecologically distinct, the Cochlearia ecotypes still represent an early stage in the process of speciation, as reproductive isolation has not (yet) developed. A sequenced annotated genome is needed to specifically target candidate genes underlying local adaptation. Article in Journal/Newspaper Northern Norway Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Norway Scientific Reports 7 1 |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
description |
Speciation encompasses a continuum over time from freely interbreeding populations to reproductively isolated species. Along this process, ecotypes – the result of local adaptation – may be on the road to new species. We investigated whether three autotetraploid Cochlearia officinalis ecotypes, adapted to different habitats (beach, estuary, spring), are genetically differentiated and result from parallel ecotypic divergence in two distinct geographical regions. We obtained genetic data from thousands of single nucleotide polymorphisms (SNPs) from restriction-site associated DNA sequencing (RADseq) and from six microsatellite markers for 12 populations to assess genetic divergence at ecotypic, geographic and population level. The genetic patterns support differentiation among ecotypes as suggested by morphology and ecology. The data fit a scenario where the ancestral beach ecotype has recurrently and polytopically given rise to the estuary and spring ecotypes. Several ecologically-relevant loci with consistent non-random segregating patterns are identified across the recurrent origins, in particular around genes related to salt stress. Despite being ecologically distinct, the Cochlearia ecotypes still represent an early stage in the process of speciation, as reproductive isolation has not (yet) developed. A sequenced annotated genome is needed to specifically target candidate genes underlying local adaptation. |
format |
Article in Journal/Newspaper |
author |
Brandrud, Marie Kristine Paun, Ovidiu Lorenzo, Maria Teresa Nordal, Inger Brysting, Anne Krag |
spellingShingle |
Brandrud, Marie Kristine Paun, Ovidiu Lorenzo, Maria Teresa Nordal, Inger Brysting, Anne Krag RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway |
author_facet |
Brandrud, Marie Kristine Paun, Ovidiu Lorenzo, Maria Teresa Nordal, Inger Brysting, Anne Krag |
author_sort |
Brandrud, Marie Kristine |
title |
RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway |
title_short |
RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway |
title_full |
RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway |
title_fullStr |
RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway |
title_full_unstemmed |
RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway |
title_sort |
radseq provides evidence for parallel ecotypic divergence in the autotetraploid cochlearia officinalis in northern norway |
publishDate |
2017 |
url |
http://hdl.handle.net/10852/56752 http://urn.nb.no/URN:NBN:no-59221 https://doi.org/10.1038/s41598-017-05794-z |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
2045-2322 |
op_relation |
http://urn.nb.no/URN:NBN:no-59221 Brandrud, Marie Kristine Paun, Ovidiu Lorenzo, Maria Teresa Nordal, Inger Brysting, Anne Krag . RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway. Scientific Reports. 2017, 7 http://hdl.handle.net/10852/56752 1483517 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=7&rft.spage=&rft.date=2017 Scientific Reports 7 http://dx.doi.org/10.1038/s41598-017-05794-z URN:NBN:no-59221 Fulltext https://www.duo.uio.no/bitstream/handle/10852/56752/2/Brandrud%2Bet%2Bal.%2B2017.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-017-05794-z |
container_title |
Scientific Reports |
container_volume |
7 |
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1 |
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1766145566339760128 |