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An integrative redescription of Hypsibius dujardini (Doyère, 1840), the nominal taxon for Hypsibioidea (Tardigrada : Eutardigrada)

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An integrative redescription of Hypsibius dujardini (Doyère, 1840), the nominal taxon for Hypsibioidea (Tardigrada : Eutardigrada)

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dc.contributor.author Gąsiorek, Piotr [USOS158848] pl
dc.contributor.author Stec, Daniel [USOS130429] pl
dc.contributor.author Morek, Witold [USOS161608] pl
dc.contributor.author Michalczyk, Łukasz [SAP14007354] pl
dc.date.accessioned 2018-06-06T06:04:40Z
dc.date.available 2018-06-06T06:04:40Z
dc.date.issued 2018 pl
dc.identifier.issn 1175-5326 pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/54705
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Na tych samych warunkach 3.0 Polska *
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/3.0/pl/legalcode *
dc.title An integrative redescription of Hypsibius dujardini (Doyère, 1840), the nominal taxon for Hypsibioidea (Tardigrada : Eutardigrada) pl
dc.type JournalArticle pl
dc.description.physical 45-75 pl
dc.description.additional Bibliogr. s. 70-75 pl
dc.abstract.en A laboratory strain identified as "Hypsibius dujardini" is one of the best studied tardigrade strains: it is widely used as a model organism in a variety of research projects, ranging from developmental and evolutionary biology through physiology and anatomy to astrobiology. Hypsibius dujardini, originally described from the Île-de-France by Doyère in the first half of the 19^{th} century, is now the nominal species for the superfamily Hypsibioidea. The species was traditionally considered cosmopolitan despite the fact that insufficient, old and sometimes contradictory descriptions and records prevented adequate delineations of similar Hypsibius species. As a consequence, H. dujardini appeared to occur globally, from Norway to Samoa. In this paper, we provide the first integrated taxonomic redescription of H. dujardini. In addition to classic imaging by light microscopy and a comprehensive morphometric dataset, we present scanning electron photomicrographs, and DNA sequences for three nuclear markers (18S rRNA, 28S rRNA, ITS-2) and one mitochondrial marker (COI) that are characterised by various mutation rates. The results of our study reveal that a commercially available strain that is maintained in many laboratories throughout the world, and assumed to represent H. dujardini sensu stricto, represents, in fact, a new species: H. exemplaris sp. nov. Redescribing the nominal taxon for Hypsibiidae, we also redefine the family and amend the definitions of the subfamily Hypsibiinae and the genus Hypsibius. Moreover, we transfer H. arcticus (Murray, 1907) and Hypsibius conifer Mihelčič, 1938 to the genus Ramazzottius since the species exhibit claws and eggs of the Ramazzottius type. Finally, we designate H. fuhrmanni as subjectively invalid because the extremely poor description precludes identifying neotype material. pl
dc.subject.en Hypsibiidae pl
dc.subject.en Hypsibiinae pl
dc.subject.en H. exemplaris sp. nov. pl
dc.subject.en H. fuhrmanni pl
dc.subject.en model organism pl
dc.subject.en polyphyly pl
dc.subject.en Ramazzottius arcticus comb. nov. pl
dc.subject.en R. conifer comb. nov. pl
dc.subject.en Z151 strain pl
dc.description.volume 4415 pl
dc.description.number 1 pl
dc.identifier.doi 10.11646/zootaxa.4415.1.2 pl
dc.identifier.eissn 1175-5334 pl
dc.title.journal Zootaxa pl
dc.language.container eng pl
dc.affiliation Wydział Biologii : Instytut Zoologii i Badań Biomedycznych pl
dc.subtype Article pl
dc.rights.original CC-BY; inne; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
.pointsMNiSW [2018 A]: 20


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Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Na tych samych warunkach 3.0 Polska Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Na tych samych warunkach 3.0 Polska