Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition
Phytoplankton are present in a large variety of aquatic environments, ranging from small freshwater ponds to the oceans. Typically, freshwater and marine species are not closely related, indicating an ancient divergence and that salinity poses a strong dispersal barrier. Here we reveal a common rece...
Main Authors: | , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Taylor & Francis
2020
|
Subjects: | |
Online Access: | https://dx.doi.org/10.6084/m9.figshare.12320111.v1 https://tandf.figshare.com/articles/dataset/Closely_related_dinoflagellate_species_in_vastly_different_habitats_an_example_of_a_marine_freshwater_transition/12320111/1 |
id |
ftdatacite:10.6084/m9.figshare.12320111.v1 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.6084/m9.figshare.12320111.v1 2023-05-15T15:12:42+02:00 Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition Annenkova, Nataliia V Hansen, Gert Rengefors, Karin 2020 https://dx.doi.org/10.6084/m9.figshare.12320111.v1 https://tandf.figshare.com/articles/dataset/Closely_related_dinoflagellate_species_in_vastly_different_habitats_an_example_of_a_marine_freshwater_transition/12320111/1 unknown Taylor & Francis https://dx.doi.org/10.1080/09670262.2020.1750057 https://dx.doi.org/10.6084/m9.figshare.12320111 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified Marine Biology Inorganic Chemistry FOS Chemical sciences dataset Dataset 2020 ftdatacite https://doi.org/10.6084/m9.figshare.12320111.v1 https://doi.org/10.1080/09670262.2020.1750057 https://doi.org/10.6084/m9.figshare.12320111 2021-11-05T12:55:41Z Phytoplankton are present in a large variety of aquatic environments, ranging from small freshwater ponds to the oceans. Typically, freshwater and marine species are not closely related, indicating an ancient divergence and that salinity poses a strong dispersal barrier. Here we reveal a common recent origin of two dinoflagellates that are well adapted to different habitats. Gymnodinium baicalense inhabits the geologically old freshwater Lake Baikal, which is located in the middle of the Eurasian continent. Gymnodinium corollarium , on the other hand, is a brackish water species from the Baltic Sea. Both species form blooms under ice during the spring. We generated 10 DNA sequences from these species. The partial 28S rRNA gene from G. baicalense and the partial 18S rRNA gene and internal transcribed spacer-2 (ITS2) from G. corollarium were sequenced for the first time. A more detailed description of G. baicalense , which was previously known only from light microscopy observations, is also provided. In the laboratory we demonstrated that G. baicalense is strictly adapted to fresh water, while G. corollarium had a wide salinity tolerance. However, the two species have almost identical morphology, identical SSU rRNA gene sequences, and only small differences in the LSU rRNA gene and ITS2. We infer a common ancestor, which was a species from the Arctic region with a tolerance to a range of salinities. Our data support the scenario that the under-ice phytoplankton community in Lake Baikal has been formed recently, even though the lake is the oldest in the world. Dataset Arctic Phytoplankton DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified Marine Biology Inorganic Chemistry FOS Chemical sciences |
spellingShingle |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified Marine Biology Inorganic Chemistry FOS Chemical sciences Annenkova, Nataliia V Hansen, Gert Rengefors, Karin Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition |
topic_facet |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified Marine Biology Inorganic Chemistry FOS Chemical sciences |
description |
Phytoplankton are present in a large variety of aquatic environments, ranging from small freshwater ponds to the oceans. Typically, freshwater and marine species are not closely related, indicating an ancient divergence and that salinity poses a strong dispersal barrier. Here we reveal a common recent origin of two dinoflagellates that are well adapted to different habitats. Gymnodinium baicalense inhabits the geologically old freshwater Lake Baikal, which is located in the middle of the Eurasian continent. Gymnodinium corollarium , on the other hand, is a brackish water species from the Baltic Sea. Both species form blooms under ice during the spring. We generated 10 DNA sequences from these species. The partial 28S rRNA gene from G. baicalense and the partial 18S rRNA gene and internal transcribed spacer-2 (ITS2) from G. corollarium were sequenced for the first time. A more detailed description of G. baicalense , which was previously known only from light microscopy observations, is also provided. In the laboratory we demonstrated that G. baicalense is strictly adapted to fresh water, while G. corollarium had a wide salinity tolerance. However, the two species have almost identical morphology, identical SSU rRNA gene sequences, and only small differences in the LSU rRNA gene and ITS2. We infer a common ancestor, which was a species from the Arctic region with a tolerance to a range of salinities. Our data support the scenario that the under-ice phytoplankton community in Lake Baikal has been formed recently, even though the lake is the oldest in the world. |
format |
Dataset |
author |
Annenkova, Nataliia V Hansen, Gert Rengefors, Karin |
author_facet |
Annenkova, Nataliia V Hansen, Gert Rengefors, Karin |
author_sort |
Annenkova, Nataliia V |
title |
Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition |
title_short |
Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition |
title_full |
Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition |
title_fullStr |
Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition |
title_full_unstemmed |
Closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition |
title_sort |
closely related dinoflagellate species in vastly different habitats – an example of a marine–freshwater transition |
publisher |
Taylor & Francis |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.12320111.v1 https://tandf.figshare.com/articles/dataset/Closely_related_dinoflagellate_species_in_vastly_different_habitats_an_example_of_a_marine_freshwater_transition/12320111/1 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Phytoplankton |
genre_facet |
Arctic Phytoplankton |
op_relation |
https://dx.doi.org/10.1080/09670262.2020.1750057 https://dx.doi.org/10.6084/m9.figshare.12320111 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.12320111.v1 https://doi.org/10.1080/09670262.2020.1750057 https://doi.org/10.6084/m9.figshare.12320111 |
_version_ |
1766343348378927104 |