Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta)
Differentiation in temperature responses (survival and growth) was investigated among isolates of two tropical to temperate green algal lineages: the Cladophora vagabunda complex and the C. albida/sericea complex. The results were analysed in relation to published data on 18S rRNA and ITS sequence d...
Published in: | European Journal of Phycology |
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Language: | English |
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2002
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Online Access: | https://hdl.handle.net/11370/55ee71f0-9aa0-4795-9d7c-eeda310c8013 https://research.rug.nl/en/publications/55ee71f0-9aa0-4795-9d7c-eeda310c8013 https://doi.org/10.1017/S0967026201003420 |
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ftunigroningenpu:oai:pure.rug.nl:publications/55ee71f0-9aa0-4795-9d7c-eeda310c8013 2024-06-02T08:11:41+00:00 Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) Breeman, A M Oh, Y S Hwang, M S Van den Hoek, C 2002-02 https://hdl.handle.net/11370/55ee71f0-9aa0-4795-9d7c-eeda310c8013 https://research.rug.nl/en/publications/55ee71f0-9aa0-4795-9d7c-eeda310c8013 https://doi.org/10.1017/S0967026201003420 eng eng https://research.rug.nl/en/publications/55ee71f0-9aa0-4795-9d7c-eeda310c8013 info:eu-repo/semantics/closedAccess Breeman , A M , Oh , Y S , Hwang , M S & Van den Hoek , C 2002 , ' Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) ' , European Journal of Phycology , vol. 37 , no. 1 , pp. 45-58 . https://doi.org/10.1017/S0967026201003420 adaptation biogeography Cladophora albida C. capensis C. dalmatica C. flexuosa C. laetevirens C. opaca C. sericea C. vagabunda growth phylogeny temperature tolerance NORTH-ATLANTIC OCEAN NUCLEAR RDNA ECOTYPIC DIFFERENTIATION DIGENEA-SIMPLEX THERMAL TRAITS SEQUENCES SEAWEEDS PHYLOGEOGRAPHY PERFORMANCE article 2002 ftunigroningenpu https://doi.org/10.1017/S0967026201003420 2024-05-07T17:46:31Z Differentiation in temperature responses (survival and growth) was investigated among isolates of two tropical to temperate green algal lineages: the Cladophora vagabunda complex and the C. albida/sericea complex. The results were analysed in relation to published data on 18S rRNA and ITS sequence divergence, which have shown that the overall degree of genetic divergence is similar in the two lineages but that very different patterns of radiation have occurred. In the C. vagabunda complex, the two main clades in the well-resolved phylogenetic tree differed mainly in their tolerance to low temperatures. Within-clade variation was no stronger in the Atlantic/Pacific than in the all-Pacific clade. In the C. albida/sericea complex, six distinctive ITS types indicated early radiation. Although distinctive differences were found between some of these types. the thermal responses of others were very similar, indicating physiological stasis. In both lineages there was evidence for some adaptation to local temperature regimes but phylogenetic constraints were generally more important, Isolates with the same ITS sequences showed similar temperature responses even though collected from different climate zones. Evidence was found for a physiological trade-off between growth at high and at low temperatures in the C. albida/sericea complex, whereas, in the C. vagabunda complex. one clade showed more eurythermal growth responses than the other. In the C. vagabunda complex, which is the ancestral lineage of the C. albida/sericea complex, major differentiation was found in cold tolerance but not in heat tolerance, whereas the reverse pattern was found in the derived C. albida/sericea complex. These findings suggest that an acquisition of cold tolerance preceded the loss of heat tolerance during adaptation to colder climates. Article in Journal/Newspaper North Atlantic University of Groningen research database Pacific European Journal of Phycology 37 1 45 58 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
adaptation biogeography Cladophora albida C. capensis C. dalmatica C. flexuosa C. laetevirens C. opaca C. sericea C. vagabunda growth phylogeny temperature tolerance NORTH-ATLANTIC OCEAN NUCLEAR RDNA ECOTYPIC DIFFERENTIATION DIGENEA-SIMPLEX THERMAL TRAITS SEQUENCES SEAWEEDS PHYLOGEOGRAPHY PERFORMANCE |
spellingShingle |
adaptation biogeography Cladophora albida C. capensis C. dalmatica C. flexuosa C. laetevirens C. opaca C. sericea C. vagabunda growth phylogeny temperature tolerance NORTH-ATLANTIC OCEAN NUCLEAR RDNA ECOTYPIC DIFFERENTIATION DIGENEA-SIMPLEX THERMAL TRAITS SEQUENCES SEAWEEDS PHYLOGEOGRAPHY PERFORMANCE Breeman, A M Oh, Y S Hwang, M S Van den Hoek, C Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) |
topic_facet |
adaptation biogeography Cladophora albida C. capensis C. dalmatica C. flexuosa C. laetevirens C. opaca C. sericea C. vagabunda growth phylogeny temperature tolerance NORTH-ATLANTIC OCEAN NUCLEAR RDNA ECOTYPIC DIFFERENTIATION DIGENEA-SIMPLEX THERMAL TRAITS SEQUENCES SEAWEEDS PHYLOGEOGRAPHY PERFORMANCE |
description |
Differentiation in temperature responses (survival and growth) was investigated among isolates of two tropical to temperate green algal lineages: the Cladophora vagabunda complex and the C. albida/sericea complex. The results were analysed in relation to published data on 18S rRNA and ITS sequence divergence, which have shown that the overall degree of genetic divergence is similar in the two lineages but that very different patterns of radiation have occurred. In the C. vagabunda complex, the two main clades in the well-resolved phylogenetic tree differed mainly in their tolerance to low temperatures. Within-clade variation was no stronger in the Atlantic/Pacific than in the all-Pacific clade. In the C. albida/sericea complex, six distinctive ITS types indicated early radiation. Although distinctive differences were found between some of these types. the thermal responses of others were very similar, indicating physiological stasis. In both lineages there was evidence for some adaptation to local temperature regimes but phylogenetic constraints were generally more important, Isolates with the same ITS sequences showed similar temperature responses even though collected from different climate zones. Evidence was found for a physiological trade-off between growth at high and at low temperatures in the C. albida/sericea complex, whereas, in the C. vagabunda complex. one clade showed more eurythermal growth responses than the other. In the C. vagabunda complex, which is the ancestral lineage of the C. albida/sericea complex, major differentiation was found in cold tolerance but not in heat tolerance, whereas the reverse pattern was found in the derived C. albida/sericea complex. These findings suggest that an acquisition of cold tolerance preceded the loss of heat tolerance during adaptation to colder climates. |
format |
Article in Journal/Newspaper |
author |
Breeman, A M Oh, Y S Hwang, M S Van den Hoek, C |
author_facet |
Breeman, A M Oh, Y S Hwang, M S Van den Hoek, C |
author_sort |
Breeman, A M |
title |
Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) |
title_short |
Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) |
title_full |
Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) |
title_fullStr |
Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) |
title_full_unstemmed |
Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) |
title_sort |
evolution of temperature responses in the cladophora vagabunda complex and the c-albida/sericea complex (chlorophyta) |
publishDate |
2002 |
url |
https://hdl.handle.net/11370/55ee71f0-9aa0-4795-9d7c-eeda310c8013 https://research.rug.nl/en/publications/55ee71f0-9aa0-4795-9d7c-eeda310c8013 https://doi.org/10.1017/S0967026201003420 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Breeman , A M , Oh , Y S , Hwang , M S & Van den Hoek , C 2002 , ' Evolution of temperature responses in the Cladophora vagabunda complex and the C-albida/sericea complex (Chlorophyta) ' , European Journal of Phycology , vol. 37 , no. 1 , pp. 45-58 . https://doi.org/10.1017/S0967026201003420 |
op_relation |
https://research.rug.nl/en/publications/55ee71f0-9aa0-4795-9d7c-eeda310c8013 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1017/S0967026201003420 |
container_title |
European Journal of Phycology |
container_volume |
37 |
container_issue |
1 |
container_start_page |
45 |
op_container_end_page |
58 |
_version_ |
1800757909359951872 |