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dc.contributor.authorToussaint, EFA
dc.contributor.authorBeutel, RG
dc.contributor.authorMoriniere, J
dc.contributor.authorJia, F
dc.contributor.authorXu, S
dc.contributor.authorMichat, MC
dc.contributor.authorZhou, X
dc.contributor.authorBilton, David
dc.contributor.authorRibera, I
dc.contributor.authorHajek, J
dc.contributor.authorBalke, M
dc.date.accessioned2016-05-24T14:34:29Z
dc.date.available2016-05-24T14:34:29Z
dc.date.issued2016-03
dc.identifier.issn0024-4082
dc.identifier.issn1096-3642
dc.identifier.urihttp://hdl.handle.net/10026.1/4710
dc.description.abstract

The superfamily Dytiscoidea contains six families with an aquatic lifestyle, with most of its extant diversity in two families: the burrowing water beetles (Noteridae) and the diving beetles (Dytiscidae). The other families have few species (up to six) and generally highly disjunct extant distributions. Aspidytidae currently contains one genus with two species, one in China and one in South Africa. Here we provide the first molecular data for the Chinese species, allowing us to explore the phylogenetic relationships and position of both species of this small family for the first time. Based on a matrix of 11 genes we inferred a phylogenetic hypothesis for Dytiscoidea including all extant families. Unexpectedly, Aspidytidae were consistently recovered as paraphyletic relative to Amphizoidae, despite being well characterized by apparently synapomorphic adult features. A re-examination of larval characters in the two aspidytid species revealed that the larva of the Chinese species is strikingly similar to that of Amphizoidae. Both share a series of plesiomorphic features but also some potential synapomorphies, including a dense vestiture of short setae on the head capsule, anteriorly shifted posterior tentorial grooves and widely separated labial palps. Arguably these features may belong to the groundplan of the clade Aspidytidae+Amphizoidae, with far-reaching secondary modifications (including reversals) in the South African Aspidytes niobe. At present we retain the family Aspidytidae, however, due to the strong adult morphological synapomorphies of the two extant species, and the fact that the molecular paraphyly of the family may result from the highly divergent nature of the two extant species. This long evolutionary separation and strong divergence, in terms of gene sequences and larval features, is undeniable, substantial levels of saturation in third codon positions of protein-coding genes being present between the two taxa. We address this issue taxonomically by introducing the new genus Sinaspidytes gen. nov. for the Chinese Aspidytes wrasei. The continued contentious relationships amongst Dytiscidae, Hygrobiidae, Aspidytidae and Amphizoidae highlight the need for more data to address dytiscoid phylogenetics, possibly involving a genomic approach.

dc.format.extent537-546
dc.languageen
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.subjectaquatic Adephaga
dc.subjectAspidytes
dc.subjectDytiscoidea
dc.subjectSinaspidytes gen
dc.subjectnov
dc.titleMolecular phylogeny of the highly disjunct cliff water beetles from South Africa and China (Coleoptera: Aspidytidae)
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000370138700003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue3
plymouth.volume176
plymouth.publication-statusPublished
plymouth.journalZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
dc.identifier.doi10.1111/zoj.12332
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2015-01-01
dc.rights.embargodate2017-3-30
dc.identifier.eissn1096-3642
dc.rights.embargoperiod12 months
rioxxterms.versionofrecord10.1111/zoj.12332
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved
rioxxterms.licenseref.startdate2016-03
rioxxterms.typeJournal Article/Review


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