Genetic structure and evolution of diploid Cochlearia in Iceland
Abstract In northern European Cochlearia (Brassicaceae), considerable chromosome variation has taken place without corresponding morphological differentiation, resulting in an intricate species complex including two base chromosome numbers and several ploidies. Here, we investigate the situation in...
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ftoslouniv:oai:www.duo.uio.no:10852/93846 2023-05-15T15:05:07+02:00 Genetic structure and evolution of diploid Cochlearia in Iceland ENEngelskEnglishGenetic structure and evolution of diploid Cochlearia in Iceland Olsen, Luka Natassja Brandrud, Marie Kristine Mandáková, Terezie Lysak, Martin A Bjorå, Charlotte Sletten Cires, Eduardo Nordal, Inger Brysting, Anne Krag 2022-04-26T10:38:20Z http://hdl.handle.net/10852/93846 http://urn.nb.no/URN:NBN:no-96404 https://doi.org/10.1093/botlinnean/boac018 EN eng NOTUR/NORSTORE/NN9244K http://urn.nb.no/URN:NBN:no-96404 Olsen, Luka Natassja Brandrud, Marie Kristine Mandáková, Terezie Lysak, Martin A Bjorå, Charlotte Sletten Cires, Eduardo Nordal, Inger Brysting, Anne Krag . Genetic structure and evolution of diploid Cochlearia in Iceland. Botanical journal of the Linnean Society. 2022 http://hdl.handle.net/10852/93846 2019132 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Botanical journal of the Linnean Society&rft.volume=&rft.spage=&rft.date=2022 Botanical journal of the Linnean Society https://doi.org/10.1093/botlinnean/boac018 URN:NBN:no-96404 Fulltext https://www.duo.uio.no/bitstream/handle/10852/93846/1/Olsen%2Bet%2Bal%2B2022.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0024-4074 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2022 ftoslouniv https://doi.org/10.1093/botlinnean/boac018 2022-05-04T22:34:03Z Abstract In northern European Cochlearia (Brassicaceae), considerable chromosome variation has taken place without corresponding morphological differentiation, resulting in an intricate species complex including two base chromosome numbers and several ploidies. Here, we investigate the situation in Iceland. The distribution, genetic structure, taxonomy and origin of the two Cochlearia cytotypes (2n = 12 and 2n = 14) present in Iceland are discussed. Chromosome counts indicate that both cytotypes occur along the coast, but 2n = 12 populations dominate (eight 2n = 12 vs. two 2n = 14 among the investigated populations), whereas 2n = 14 was reported for the two inland alpine populations investigated here. RADseq data support geographically structured genetic variation along the Icelandic coast and environmentally structured genetic differentiation between coastal and alpine populations. The alpine populations show genetic and morphological affiliation with C. groenlandica (2n = 14), which is widely distributed in the Arctic, but more comprehensive sampling is needed to draw conclusions concerning the taxonomic status of the Icelandic coastal plants. To uncover the origin of and phylogenomic relationships between the two chromosome variants, comparative whole-genome sequencing should be performed. Article in Journal/Newspaper Arctic Iceland Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Botanical Journal of the Linnean Society |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
description |
Abstract In northern European Cochlearia (Brassicaceae), considerable chromosome variation has taken place without corresponding morphological differentiation, resulting in an intricate species complex including two base chromosome numbers and several ploidies. Here, we investigate the situation in Iceland. The distribution, genetic structure, taxonomy and origin of the two Cochlearia cytotypes (2n = 12 and 2n = 14) present in Iceland are discussed. Chromosome counts indicate that both cytotypes occur along the coast, but 2n = 12 populations dominate (eight 2n = 12 vs. two 2n = 14 among the investigated populations), whereas 2n = 14 was reported for the two inland alpine populations investigated here. RADseq data support geographically structured genetic variation along the Icelandic coast and environmentally structured genetic differentiation between coastal and alpine populations. The alpine populations show genetic and morphological affiliation with C. groenlandica (2n = 14), which is widely distributed in the Arctic, but more comprehensive sampling is needed to draw conclusions concerning the taxonomic status of the Icelandic coastal plants. To uncover the origin of and phylogenomic relationships between the two chromosome variants, comparative whole-genome sequencing should be performed. |
format |
Article in Journal/Newspaper |
author |
Olsen, Luka Natassja Brandrud, Marie Kristine Mandáková, Terezie Lysak, Martin A Bjorå, Charlotte Sletten Cires, Eduardo Nordal, Inger Brysting, Anne Krag |
spellingShingle |
Olsen, Luka Natassja Brandrud, Marie Kristine Mandáková, Terezie Lysak, Martin A Bjorå, Charlotte Sletten Cires, Eduardo Nordal, Inger Brysting, Anne Krag Genetic structure and evolution of diploid Cochlearia in Iceland |
author_facet |
Olsen, Luka Natassja Brandrud, Marie Kristine Mandáková, Terezie Lysak, Martin A Bjorå, Charlotte Sletten Cires, Eduardo Nordal, Inger Brysting, Anne Krag |
author_sort |
Olsen, Luka Natassja |
title |
Genetic structure and evolution of diploid Cochlearia in Iceland |
title_short |
Genetic structure and evolution of diploid Cochlearia in Iceland |
title_full |
Genetic structure and evolution of diploid Cochlearia in Iceland |
title_fullStr |
Genetic structure and evolution of diploid Cochlearia in Iceland |
title_full_unstemmed |
Genetic structure and evolution of diploid Cochlearia in Iceland |
title_sort |
genetic structure and evolution of diploid cochlearia in iceland |
publishDate |
2022 |
url |
http://hdl.handle.net/10852/93846 http://urn.nb.no/URN:NBN:no-96404 https://doi.org/10.1093/botlinnean/boac018 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Iceland |
genre_facet |
Arctic Iceland |
op_source |
0024-4074 |
op_relation |
NOTUR/NORSTORE/NN9244K http://urn.nb.no/URN:NBN:no-96404 Olsen, Luka Natassja Brandrud, Marie Kristine Mandáková, Terezie Lysak, Martin A Bjorå, Charlotte Sletten Cires, Eduardo Nordal, Inger Brysting, Anne Krag . Genetic structure and evolution of diploid Cochlearia in Iceland. Botanical journal of the Linnean Society. 2022 http://hdl.handle.net/10852/93846 2019132 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Botanical journal of the Linnean Society&rft.volume=&rft.spage=&rft.date=2022 Botanical journal of the Linnean Society https://doi.org/10.1093/botlinnean/boac018 URN:NBN:no-96404 Fulltext https://www.duo.uio.no/bitstream/handle/10852/93846/1/Olsen%2Bet%2Bal%2B2022.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1093/botlinnean/boac018 |
container_title |
Botanical Journal of the Linnean Society |
_version_ |
1766336867631890432 |