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Molecular phylogeny and morphological revision of the Ctenotus labillardieri (Reptilia: Squamata: Scincidae) species group and a new species of immediate conservation concern in the southwestern Australian biodiversity hotspot

Kay, Geoffrey; Keogh, J Scott

Description

Ctenotus is the largest and most diverse genus of skinks in Australia with at least 97 described species. We generated large mitochondrial and nuclear DNA data sets for 70 individuals representing all available species in the C. labillardieri speciesgroup to produce the first comprehensive phylogeny for this clade. The widespread C. labillardieri was sampled extensively to provide the first detailed phylogeographic data set for a reptile in the southwestern Australian biodiversity hotspot. We...[Show more]

dc.contributor.authorKay, Geoffrey
dc.contributor.authorKeogh, J Scott
dc.date.accessioned2015-12-10T23:15:48Z
dc.identifier.issn1175-5326
dc.identifier.urihttp://hdl.handle.net/1885/64800
dc.description.abstractCtenotus is the largest and most diverse genus of skinks in Australia with at least 97 described species. We generated large mitochondrial and nuclear DNA data sets for 70 individuals representing all available species in the C. labillardieri speciesgroup to produce the first comprehensive phylogeny for this clade. The widespread C. labillardieri was sampled extensively to provide the first detailed phylogeographic data set for a reptile in the southwestern Australian biodiversity hotspot. We supplemented our molecular data with a comprehensive morphological dataset for the entire group, and together these data are used to revise the group and describe a new species. The morphologically highly variable species C. labillardieri comprises seven well-supported genetic clades that each occupy distinct geographic regions. The phylogeographic patterns observed in this taxon are consistent with studies of frogs, plants and invertebrates, adding strength to emerging biogeographic hypotheses in this iconic region. The species C. catenifer, C. youngsoni, and C. gemmula are well supported, and despite limited sampling both C. catenifer and C. gemmula show substantial genetic structure. The threatened C. lancelini from Lancelin Island and the adjacent mainland is the sister taxon to a new species from the Swan Coastal Plain, which we describe as C. ora sp. nov. This species is a habitat specialist, occurring primarily in sandy regions south of Perth that currently are under intense development. Ctenotus ora sp. nov. should be considered for conservation attention immediately.
dc.publisherMagnolia Press
dc.sourceZootaxa
dc.subjectKeywords: Anura; Ctenotus; Gemmula; Invertebrata; Ora; Reptilia; Scincidae; Squamata ATP; Biodiversity hotspot; Cryptic species; Lizard; ND2; Skink; Southwestern Australia; Swan Coastal Plain
dc.titleMolecular phylogeny and morphological revision of the Ctenotus labillardieri (Reptilia: Squamata: Scincidae) species group and a new species of immediate conservation concern in the southwestern Australian biodiversity hotspot
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume3390
dc.date.issued2012
local.identifier.absfor060301 - Animal Systematics and Taxonomy
local.identifier.ariespublicationu9511635xPUB1000
local.type.statusPublished Version
local.contributor.affiliationKay, Geoffrey, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationKeogh, J Scott, College of Medicine, Biology and Environment, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage18
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
dc.date.updated2016-02-24T12:02:54Z
local.identifier.scopusID2-s2.0-84863941950
local.identifier.thomsonID000299055400013
CollectionsANU Research Publications

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