Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea
Tardigrades represent one of the most abundant groups of Antarctic metazoans in terms of abundance and diversity, thanks to their ability to withstand desiccation and freezing; however, their biodiversity is underestimated. Antarctic tardigrades from Dronning Maud Land and Victoria Land were analyse...
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2016
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Online Access: | https://doi.org/10.1071/IS15033 |
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ftbioone:10.1071/IS15033 2024-06-02T07:58:02+00:00 Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea Matteo Vecchi Michele Cesari Roberto Bertolani K. Ingemar Jönsson Lorena Rebecchi Roberto Guidetti Matteo Vecchi Michele Cesari Roberto Bertolani K. Ingemar Jönsson Lorena Rebecchi Roberto Guidetti world 2016-08-31 text/HTML https://doi.org/10.1071/IS15033 en eng CSIRO Publishing doi:10.1071/IS15033 All rights reserved. https://doi.org/10.1071/IS15033 Text 2016 ftbioone https://doi.org/10.1071/IS15033 2024-05-07T00:49:46Z Tardigrades represent one of the most abundant groups of Antarctic metazoans in terms of abundance and diversity, thanks to their ability to withstand desiccation and freezing; however, their biodiversity is underestimated. Antarctic tardigrades from Dronning Maud Land and Victoria Land were analysed from a morphological point of view with light microscopy and scanning electron microscopy, and from a molecular point of view using two genes (18S, 28S) analysed in Bayesian inference and maximum-likelihood frameworks. In addition, indel-coding datasets were used for the first time to infer tardigrade phylogenies. We also compared Antarctic specimens with those from Italy and Greenland. A combined morphological and molecular analysis led to the identification of two new evolutionary lineages, for which we here erect the new genera Acanthechiniscus, gen. nov. (Echiniscidae, Echiniscoidea) and Mesobiotus, gen. nov. (Macrobiotidae, Macrobiotoidea). Moreover, two species new to science were discovered: Pseudechiniscus titianae, sp. nov. (Echiniscidae : Echiniscoidea) and Mesobiotus hilariae, sp. nov. (Macrobiotidae : Macrobiotoidea). This study highlights the high tardigrade diversity in Antarctica and the importance of an integrated approach in faunal and taxonomic studies.http//zoobank.org/urnlsidzoobank.orgpub8AAB42BF-B781-4418-A385-DC80C18EC31D Text Antarc* Antarctic Antarctica Dronning Maud Land Greenland Victoria Land Tardigrade BioOne Online Journals Antarctic Dronning Maud Land Greenland Indel’ ENVELOPE(35.282,35.282,66.963,66.963) Victoria Land Invertebrate Systematics 30 4 303 |
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ftbioone |
language |
English |
description |
Tardigrades represent one of the most abundant groups of Antarctic metazoans in terms of abundance and diversity, thanks to their ability to withstand desiccation and freezing; however, their biodiversity is underestimated. Antarctic tardigrades from Dronning Maud Land and Victoria Land were analysed from a morphological point of view with light microscopy and scanning electron microscopy, and from a molecular point of view using two genes (18S, 28S) analysed in Bayesian inference and maximum-likelihood frameworks. In addition, indel-coding datasets were used for the first time to infer tardigrade phylogenies. We also compared Antarctic specimens with those from Italy and Greenland. A combined morphological and molecular analysis led to the identification of two new evolutionary lineages, for which we here erect the new genera Acanthechiniscus, gen. nov. (Echiniscidae, Echiniscoidea) and Mesobiotus, gen. nov. (Macrobiotidae, Macrobiotoidea). Moreover, two species new to science were discovered: Pseudechiniscus titianae, sp. nov. (Echiniscidae : Echiniscoidea) and Mesobiotus hilariae, sp. nov. (Macrobiotidae : Macrobiotoidea). This study highlights the high tardigrade diversity in Antarctica and the importance of an integrated approach in faunal and taxonomic studies.http//zoobank.org/urnlsidzoobank.orgpub8AAB42BF-B781-4418-A385-DC80C18EC31D |
author2 |
Matteo Vecchi Michele Cesari Roberto Bertolani K. Ingemar Jönsson Lorena Rebecchi Roberto Guidetti |
format |
Text |
author |
Matteo Vecchi Michele Cesari Roberto Bertolani K. Ingemar Jönsson Lorena Rebecchi Roberto Guidetti |
spellingShingle |
Matteo Vecchi Michele Cesari Roberto Bertolani K. Ingemar Jönsson Lorena Rebecchi Roberto Guidetti Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea |
author_facet |
Matteo Vecchi Michele Cesari Roberto Bertolani K. Ingemar Jönsson Lorena Rebecchi Roberto Guidetti |
author_sort |
Matteo Vecchi |
title |
Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea |
title_short |
Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea |
title_full |
Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea |
title_fullStr |
Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea |
title_full_unstemmed |
Integrative systematic studies on tardigrades from Antarctica identify new genera and new species within Macrobiotoidea and Echiniscoidea |
title_sort |
integrative systematic studies on tardigrades from antarctica identify new genera and new species within macrobiotoidea and echiniscoidea |
publisher |
CSIRO Publishing |
publishDate |
2016 |
url |
https://doi.org/10.1071/IS15033 |
op_coverage |
world |
long_lat |
ENVELOPE(35.282,35.282,66.963,66.963) |
geographic |
Antarctic Dronning Maud Land Greenland Indel’ Victoria Land |
geographic_facet |
Antarctic Dronning Maud Land Greenland Indel’ Victoria Land |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land Greenland Victoria Land Tardigrade |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land Greenland Victoria Land Tardigrade |
op_source |
https://doi.org/10.1071/IS15033 |
op_relation |
doi:10.1071/IS15033 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1071/IS15033 |
container_title |
Invertebrate Systematics |
container_volume |
30 |
container_issue |
4 |
container_start_page |
303 |
_version_ |
1800741285939642368 |