Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia
We studied the structure of genetic variation (at both ramet- and genet-level) and clonal diversity within and among populations in the four closely related arctic clonal sedges Carex bigelowii, C. ensifolia, C. lugens and C. starts by use of allozyme markers. Compared to other sedges and arctic pla...
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Language: | English |
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Wiley-Blackwell
2001
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ftulundlup:oai:lup.lub.lu.se:376c05cc-9264-4311-9b95-712f09f954b7 2023-05-15T14:47:08+02:00 Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia Stenström, A Jonsson, B O Jonsdottir, I S Fagerström, Torbjörn Augner, M 2001 https://lup.lub.lu.se/record/147620 https://doi.org/10.1046/j.1365-294x.2001.01238.x eng eng Wiley-Blackwell https://lup.lub.lu.se/record/147620 http://dx.doi.org/10.1046/j.1365-294x.2001.01238.x scopus:0035086892 Molecular Ecology; 10(2), pp 497-513 (2001) ISSN: 0962-1083 Ecology contributiontojournal/article info:eu-repo/semantics/article text 2001 ftulundlup https://doi.org/10.1046/j.1365-294x.2001.01238.x 2023-02-01T23:32:27Z We studied the structure of genetic variation (at both ramet- and genet-level) and clonal diversity within and among populations in the four closely related arctic clonal sedges Carex bigelowii, C. ensifolia, C. lugens and C. starts by use of allozyme markers. Compared to other sedges and arctic plants, the studied taxa all had high levels of genetic variation, both within populations and taxa. These taxa contained most of the total gene diversity (H-T) within populations and a small part of the diversity among populations (G(ST) ranged 0.05-0.43). Carex bigelowii had genetic variation (H-S = 0.173, mean for populations) at a comparable level to other outbreeding arctic plants and to other widespread, rhizomatous and mainly outbreeding Carex species. In contrast, C. ensifolia (H-S = 0.335), C. lugens (H-S = 0.339) and C. stans (H-S = 0.294) had within-population variations that were higher than in most other studied Carex species and for arctic plants in general. Genetic variation was not related to any tested environmental variable, but it was lower in areas deglaciated only 10 000 years BP compared to areas deglaciated 60 000 years BP or not glaciated at all during the Weichselian. All the populations were multiclonal, except for two populations of C. starts that were monoclonal. In contrast to genetic variation, clonal diversity decreased with latitude and did not differ between areas with different times of deglaciation. In accordance with previous studies, C. bigelowii and C. lugens were found to be outbreeding, while C. ensifolia and C. stans had mixed mating systems. Article in Journal/Newspaper Arctic Carex bigelowii Lund University Publications (LUP) Arctic Molecular Ecology 10 2 497 513 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology |
spellingShingle |
Ecology Stenström, A Jonsson, B O Jonsdottir, I S Fagerström, Torbjörn Augner, M Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia |
topic_facet |
Ecology |
description |
We studied the structure of genetic variation (at both ramet- and genet-level) and clonal diversity within and among populations in the four closely related arctic clonal sedges Carex bigelowii, C. ensifolia, C. lugens and C. starts by use of allozyme markers. Compared to other sedges and arctic plants, the studied taxa all had high levels of genetic variation, both within populations and taxa. These taxa contained most of the total gene diversity (H-T) within populations and a small part of the diversity among populations (G(ST) ranged 0.05-0.43). Carex bigelowii had genetic variation (H-S = 0.173, mean for populations) at a comparable level to other outbreeding arctic plants and to other widespread, rhizomatous and mainly outbreeding Carex species. In contrast, C. ensifolia (H-S = 0.335), C. lugens (H-S = 0.339) and C. stans (H-S = 0.294) had within-population variations that were higher than in most other studied Carex species and for arctic plants in general. Genetic variation was not related to any tested environmental variable, but it was lower in areas deglaciated only 10 000 years BP compared to areas deglaciated 60 000 years BP or not glaciated at all during the Weichselian. All the populations were multiclonal, except for two populations of C. starts that were monoclonal. In contrast to genetic variation, clonal diversity decreased with latitude and did not differ between areas with different times of deglaciation. In accordance with previous studies, C. bigelowii and C. lugens were found to be outbreeding, while C. ensifolia and C. stans had mixed mating systems. |
format |
Article in Journal/Newspaper |
author |
Stenström, A Jonsson, B O Jonsdottir, I S Fagerström, Torbjörn Augner, M |
author_facet |
Stenström, A Jonsson, B O Jonsdottir, I S Fagerström, Torbjörn Augner, M |
author_sort |
Stenström, A |
title |
Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia |
title_short |
Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia |
title_full |
Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia |
title_fullStr |
Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia |
title_full_unstemmed |
Genetic variation and clonal diversity in four clonal sedges (Carex) along the Arctic coast of Eurasia |
title_sort |
genetic variation and clonal diversity in four clonal sedges (carex) along the arctic coast of eurasia |
publisher |
Wiley-Blackwell |
publishDate |
2001 |
url |
https://lup.lub.lu.se/record/147620 https://doi.org/10.1046/j.1365-294x.2001.01238.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Carex bigelowii |
genre_facet |
Arctic Carex bigelowii |
op_source |
Molecular Ecology; 10(2), pp 497-513 (2001) ISSN: 0962-1083 |
op_relation |
https://lup.lub.lu.se/record/147620 http://dx.doi.org/10.1046/j.1365-294x.2001.01238.x scopus:0035086892 |
op_doi |
https://doi.org/10.1046/j.1365-294x.2001.01238.x |
container_title |
Molecular Ecology |
container_volume |
10 |
container_issue |
2 |
container_start_page |
497 |
op_container_end_page |
513 |
_version_ |
1766318268981706752 |