Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere.
Historical climate data indicate that the Earth has passed through multiple geological periods with much warmer-than-present climates, including epochs of the Miocene (23-5.3 mya BP) with temperatures 3-4°C above present, and more recent interglacial stages of the Quaternary, for example, Marine Iso...
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ftpubmed:38869044 2024-09-15T17:52:33+00:00 Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere. Shain, Daniel H Rogozhina, Irina Fontaneto, Diego Nesje, Atle Saglam, Naim Bartlett, Jesamine Zawierucha, Krzysztof Kielland, Øystein Nordeide Dunshea, Glenn Arnason, Einar Rosvold, Jørgen 2024 Jun https://doi.org/10.1098/rsbl.2023.0546 https://pubmed.ncbi.nlm.nih.gov/38869044 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11285869/ eng eng Atypon https://doi.org/10.1098/rsbl.2023.0546 https://pubmed.ncbi.nlm.nih.gov/38869044 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11285869/ Biol Lett ISSN:1744-957X Volume:20 Issue:6 Norway climate change evolution ice microinvertebrate rotifer Journal Article 2024 ftpubmed https://doi.org/10.1098/rsbl.2023.0546 2024-07-31T16:03:00Z Historical climate data indicate that the Earth has passed through multiple geological periods with much warmer-than-present climates, including epochs of the Miocene (23-5.3 mya BP) with temperatures 3-4°C above present, and more recent interglacial stages of the Quaternary, for example, Marine Isotope Stage 11c (approx. 425-395 ka BP) and Middle Holocene thermal maximum (7.5-4.2 ka BP), during which continental glaciers may have melted entirely. Such warm periods would have severe consequences for ice-obligate fauna in terms of their distribution, biodiversity and population structure. To determine the impacts of these climatic events in the Nordic cryosphere, we surveyed ice habitats throughout mainland Norway and Svalbard ranging from maritime glaciers to continental ice patches (i.e. non-flowing, inland ice subjected to deep freezing overwinter), finding particularly widespread populations of ice-inhabiting bdelloid rotifers. Combined mitochondrial and nuclear DNA sequencing identified approx. 16 undescribed, species-level rotifer lineages that revealed an ancestry predating the Quaternary (> 2.58 mya). These rotifers also displayed robust freeze/thaw tolerance in laboratory experiments. Collectively, these data suggest that extensive ice refugia, comparable with stable ice patches across the contemporary Norwegian landscape, persisted in the cryosphere over geological time, and may have facilitated the long-term survival of ice-obligate Metazoa before and throughout the Quaternary. Article in Journal/Newspaper arctic cryosphere Climate change Svalbard Rotifer PubMed Central (PMC) Biology Letters 20 6 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Norway climate change evolution ice microinvertebrate rotifer |
spellingShingle |
Norway climate change evolution ice microinvertebrate rotifer Shain, Daniel H Rogozhina, Irina Fontaneto, Diego Nesje, Atle Saglam, Naim Bartlett, Jesamine Zawierucha, Krzysztof Kielland, Øystein Nordeide Dunshea, Glenn Arnason, Einar Rosvold, Jørgen Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere. |
topic_facet |
Norway climate change evolution ice microinvertebrate rotifer |
description |
Historical climate data indicate that the Earth has passed through multiple geological periods with much warmer-than-present climates, including epochs of the Miocene (23-5.3 mya BP) with temperatures 3-4°C above present, and more recent interglacial stages of the Quaternary, for example, Marine Isotope Stage 11c (approx. 425-395 ka BP) and Middle Holocene thermal maximum (7.5-4.2 ka BP), during which continental glaciers may have melted entirely. Such warm periods would have severe consequences for ice-obligate fauna in terms of their distribution, biodiversity and population structure. To determine the impacts of these climatic events in the Nordic cryosphere, we surveyed ice habitats throughout mainland Norway and Svalbard ranging from maritime glaciers to continental ice patches (i.e. non-flowing, inland ice subjected to deep freezing overwinter), finding particularly widespread populations of ice-inhabiting bdelloid rotifers. Combined mitochondrial and nuclear DNA sequencing identified approx. 16 undescribed, species-level rotifer lineages that revealed an ancestry predating the Quaternary (> 2.58 mya). These rotifers also displayed robust freeze/thaw tolerance in laboratory experiments. Collectively, these data suggest that extensive ice refugia, comparable with stable ice patches across the contemporary Norwegian landscape, persisted in the cryosphere over geological time, and may have facilitated the long-term survival of ice-obligate Metazoa before and throughout the Quaternary. |
format |
Article in Journal/Newspaper |
author |
Shain, Daniel H Rogozhina, Irina Fontaneto, Diego Nesje, Atle Saglam, Naim Bartlett, Jesamine Zawierucha, Krzysztof Kielland, Øystein Nordeide Dunshea, Glenn Arnason, Einar Rosvold, Jørgen |
author_facet |
Shain, Daniel H Rogozhina, Irina Fontaneto, Diego Nesje, Atle Saglam, Naim Bartlett, Jesamine Zawierucha, Krzysztof Kielland, Øystein Nordeide Dunshea, Glenn Arnason, Einar Rosvold, Jørgen |
author_sort |
Shain, Daniel H |
title |
Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere. |
title_short |
Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere. |
title_full |
Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere. |
title_fullStr |
Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere. |
title_full_unstemmed |
Ice-inhabiting species of Bdelloidea Rotifera reveal a pre-Quaternary ancestry in the Arctic cryosphere. |
title_sort |
ice-inhabiting species of bdelloidea rotifera reveal a pre-quaternary ancestry in the arctic cryosphere. |
publisher |
Atypon |
publishDate |
2024 |
url |
https://doi.org/10.1098/rsbl.2023.0546 https://pubmed.ncbi.nlm.nih.gov/38869044 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11285869/ |
genre |
arctic cryosphere Climate change Svalbard Rotifer |
genre_facet |
arctic cryosphere Climate change Svalbard Rotifer |
op_source |
Biol Lett ISSN:1744-957X Volume:20 Issue:6 |
op_relation |
https://doi.org/10.1098/rsbl.2023.0546 https://pubmed.ncbi.nlm.nih.gov/38869044 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11285869/ |
op_doi |
https://doi.org/10.1098/rsbl.2023.0546 |
container_title |
Biology Letters |
container_volume |
20 |
container_issue |
6 |
_version_ |
1810294620724133888 |