Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA
Antarctica is one of the harshest environments on the planet because of its extreme climatic conditions, with prolonged winters, freezing temperatures and lack of liquid water. While almost the entire continent (99.7%) is covered year round by snow and ice, some mountain peaks and coastal areas are...
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ftdatacite:10.6084/m9.figshare.1092547 2023-05-15T13:45:34+02:00 Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA Velasco-Castrillón, Alejandro Page, Timothy J. Gibson, John A. E. Stevens, Mark I. 2014 https://dx.doi.org/10.6084/m9.figshare.1092547 https://tandf.figshare.com/articles/dataset/Surprisingly_high_levels_of_biodiversity_and_endemism_amongst_Antarctic_rotifers_uncovered_with_mitochondrial_DNA/1092547 unknown Taylor & Francis https://dx.doi.org/10.1080/14888386.2014.930717 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Uncategorized dataset Dataset 2014 ftdatacite https://doi.org/10.6084/m9.figshare.1092547 https://doi.org/10.1080/14888386.2014.930717 2021-11-05T12:55:41Z Antarctica is one of the harshest environments on the planet because of its extreme climatic conditions, with prolonged winters, freezing temperatures and lack of liquid water. While almost the entire continent (99.7%) is covered year round by snow and ice, some mountain peaks and coastal areas are ice-free and sustain life. Invertebrates dominate in this environment, but despite their obvious abundance, little is known of one major player, the rotifers. In this study, we examine the distribution and diversity of rotifers from across continental Antarctica using mitochondrial c oxidase subunit I DNA sequences, and compare to sequences extracted from specimens collected in limited locations in the Antarctic Peninsula (AP) and in Tierra del Fuego (TF) in South America. We identified rotifers of the Class Bdelloidea to be the most frequently sampled micro-organisms in soil and limno-terrestrial environments. From the Antarctic samples, 514 sequences were generated and 37 distinct lineages were identified (40 putative species based on the PTP model) within Philodina , Adineta and unidentified bdelloids (all currently considered endemic to Antarctica). Overall, we observed widespread ranges for some rotifers in continental Antarctica, many of them exceeding 2000 km. Only one bdelloid lineage ( Adineta cf. gracilis ) from continental Antarctica was also present in maritime Antarctica. No close similarities were found with worldwide locations, or amongst AP and TF. Our broad coverage across Antarctica shows unique lineages that may represent potential species surpassing what is presently known from morphology, even when conservative approaches are applied for species delimitation. Dataset Antarc* Antarctic Antarctic Peninsula Antarctica Tierra del Fuego DataCite Metadata Store (German National Library of Science and Technology) Antarctic Antarctic Peninsula The Antarctic |
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Uncategorized Velasco-Castrillón, Alejandro Page, Timothy J. Gibson, John A. E. Stevens, Mark I. Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA |
topic_facet |
Uncategorized |
description |
Antarctica is one of the harshest environments on the planet because of its extreme climatic conditions, with prolonged winters, freezing temperatures and lack of liquid water. While almost the entire continent (99.7%) is covered year round by snow and ice, some mountain peaks and coastal areas are ice-free and sustain life. Invertebrates dominate in this environment, but despite their obvious abundance, little is known of one major player, the rotifers. In this study, we examine the distribution and diversity of rotifers from across continental Antarctica using mitochondrial c oxidase subunit I DNA sequences, and compare to sequences extracted from specimens collected in limited locations in the Antarctic Peninsula (AP) and in Tierra del Fuego (TF) in South America. We identified rotifers of the Class Bdelloidea to be the most frequently sampled micro-organisms in soil and limno-terrestrial environments. From the Antarctic samples, 514 sequences were generated and 37 distinct lineages were identified (40 putative species based on the PTP model) within Philodina , Adineta and unidentified bdelloids (all currently considered endemic to Antarctica). Overall, we observed widespread ranges for some rotifers in continental Antarctica, many of them exceeding 2000 km. Only one bdelloid lineage ( Adineta cf. gracilis ) from continental Antarctica was also present in maritime Antarctica. No close similarities were found with worldwide locations, or amongst AP and TF. Our broad coverage across Antarctica shows unique lineages that may represent potential species surpassing what is presently known from morphology, even when conservative approaches are applied for species delimitation. |
format |
Dataset |
author |
Velasco-Castrillón, Alejandro Page, Timothy J. Gibson, John A. E. Stevens, Mark I. |
author_facet |
Velasco-Castrillón, Alejandro Page, Timothy J. Gibson, John A. E. Stevens, Mark I. |
author_sort |
Velasco-Castrillón, Alejandro |
title |
Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA |
title_short |
Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA |
title_full |
Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA |
title_fullStr |
Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA |
title_full_unstemmed |
Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA |
title_sort |
surprisingly high levels of biodiversity and endemism amongst antarctic rotifers uncovered with mitochondrial dna |
publisher |
Taylor & Francis |
publishDate |
2014 |
url |
https://dx.doi.org/10.6084/m9.figshare.1092547 https://tandf.figshare.com/articles/dataset/Surprisingly_high_levels_of_biodiversity_and_endemism_amongst_Antarctic_rotifers_uncovered_with_mitochondrial_DNA/1092547 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Tierra del Fuego |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Tierra del Fuego |
op_relation |
https://dx.doi.org/10.1080/14888386.2014.930717 |
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.1092547 https://doi.org/10.1080/14888386.2014.930717 |
_version_ |
1766227542198452224 |