000028813 001__ 28813
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000028813 041__ $$aeng
000028813 080__ $$a58
000028813 100__ $$aKosakyan, Anush$$uLaboratoire de biologie du sol, Institut de biologie, Université de Neuchâtel, Switzerland
000028813 245__ $$9eng$$aCOI Barcoding of Nebelid Testate Amoebae (Amoebozoa: Arcellinida): Extensive Cryptic Diversity and Redefinition of the Hyalospheniidae Schultze
000028813 269__ $$c2012
000028813 520__ $$9eng$$aWe used Cytochrome Oxidase Subunit 1 (COI) to assess the phylogenetic relationships and taxonomy of <i>Nebela</i> sensu stricto and similar taxa (Nebela group, Arcellinida) in order to clarify the taxonomic validity of morphological characters. The COI data not only successfully separated all studied morphospecies but also revealed the existence of several potential cryptic species. The taxonomic implications of the results are: (1) Genus <i>Nebela</i> is paraphyletic and will need to be split into at least two monophyletic assemblages when taxon sampling is further expanded. (2) Genus <i>Quadrulella</i>, one of the few arcellinid genera building its shell from self-secreted siliceous elements, and the mixotrophic <i>Hyalosphenia papilio</i> branch within the <i>Nebela</i> group in agreement with the general morphology of their shell and the presence of an organic rim around the aperture (synapomorphy for Hyalospheniidae). We thus synonymise Hyalospheniidae and Nebelidae. Hyalospheniidae takes precedence and now includes <i>Hyalosphenia</i>, <i>Quadrulella</i> (previously in the Lesquereusiidae) and all Nebelidae with the exception of <i>Argynnia</i> and <i>Physochila</i>. <i>Leptochlamys</i> is Arcellinida <i>incertae sedis</i>. We describe a new genus <i>Padaungiella</i> Lara et Todorov and a new species <i>Nebela meisterfeldi</i> n. sp. Heger et Mitchell and revise the taxonomic position (and rank) of several taxa. These results show that the traditional morphology-based taxonomy underestimates the diversity within the <i>Nebela</i> group, and that phylogenetic relationships are best inferred from shell shape rather than from the material used to build the shell.
000028813 695__ $$9eng$$aArcellinida ; DNA barcoding ; COI ; cryptic species ; Hyalospheniidae ; Testate amoeba
000028813 700__ $$aHeger, Thierry J.$$uLaboratoire de biologie du sol, Institut de biologie, Université de Neuchâtel, Switzerland
000028813 700__ $$aLeander, Brian S.$$uDepartment of Zoology, University of British Columbia, Vancouver, BC, Canada
000028813 700__ $$aTodorov, Milcho$$uInstitute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
000028813 700__ $$aMitchell, Edward A. D.$$uLaboratoire de biologie du sol, Institut de Biologie, Université de Neuchâtel, Switzerland
000028813 700__ $$aLara, Enrique$$uLaboratoire de biologie du sol, Institut de biologie, Université de Neuchâtel, Switzerland
000028813 773__ $$cGraham Clark, C.$$dElsevier$$g2012/163/3/415-434$$tProtist
000028813 775__ $$gPublished Version$$ohttp://dx.doi.org/10.1016/j.protis.2011.10.003
000028813 8564_ $$fKosakyan_Anush_-_COI_Barcoding_of_Nebelid_Testate_Amoebae_Amoebozoa_Arcellinida_20120321.pdf$$qapplication/pdf$$s3116617$$uhttp://doc.rero.ch/record/28813/files/Kosakyan_Anush_-_COI_Barcoding_of_Nebelid_Testate_Amoebae_Amoebozoa_Arcellinida_20120321.pdf$$yorder:1$$zTexte intégral
000028813 918__ $$aFaculté des sciences$$bRue Emile-Argand 11, 2007 Neuchâtel$$cInstitut de biologie
000028813 919__ $$aUniversité de Neuchâtel$$bNeuchâtel$$ddoc.support@rero.ch
000028813 980__ $$aPOSTPRINT$$bUNINE$$fART_JOURNAL
000028813 990__ $$a20120321155443-UW