Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/48838
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dc.contributor.authorGlennon, V.en
dc.contributor.authorPerkins, E.en
dc.contributor.authorChisholm, L.en
dc.contributor.authorWhittington, I.en
dc.date.issued2008en
dc.identifier.citationInternational Journal for Parasitology, 2008; 38(13):1599-1612en
dc.identifier.issn0020-7519en
dc.identifier.issn1879-0135en
dc.identifier.urihttp://hdl.handle.net/2440/48838-
dc.descriptionCopyright © 2009 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.en
dc.description.abstractThe phylogeography and host specificity of three monogenean species infecting different sites on the southern fiddler ray, Trygonorrhina fasciata (Rhinobatidae) in South Australia (SA) were studied: Branchotenthes octohamatus (Hexabothriidae: gills), Calicotyle australis (Monocotylidae: cloaca) and Pseudoleptobothrium aptychotremae (Microbothriidae: skin). Five rhinobatid species (Aptychotrema vincentiana, T. fasciata, Trygonorrhina sp. A, Aptychotrema rostrata and Rhinobatos typus) with distributions spanning west, south and east Australian coastal waters, were surveyed for monogeneans resembling the three species documented from T. fasciata in SA. The identities of hosts and parasites collected were investigated using the mitochondrial genes ND4 and Cytochrome b (cytb), respectively, in addition to the nuclear marker, Elongation factor 1-alpha (EF1a) for Pseudoleptobothrium. Genetic analyses confirmed that B. octohamatus is geographically widespread and displays little genetic structure, suggesting high levels of gene flow. It was collected from four rhinobatid species throughout its distribution and is not, therefore, host specific. For C. australis, genetic analyses revealed two discrete populations with a genetic divergence of approximately 4%, one population occurring west of Bass Strait on two sympatric host species and the other population on the east coast, also occurring on sympatric host species. Similarly, for Pseudoleptobothrium, specimens collected west of Bass Strait were genetically distinct ( approximately 3.5%) from those collected to the east. However, on the east coast, a third Pseudoleptobothrium population was revealed, separated by a genetic distance of >11%, indicating a morphologically cryptic species. Host preferences were indicated for each Pseudoleptobothrium lineage. These genetic discoveries are discussed in relation to life history characteristics of each monogenean species, highlighting the value of phylogeographic analyses to understand the parasite-host relationship.en
dc.language.isoenen
dc.publisherPergamon-Elsevier Science Ltden
dc.subjectMonogenea; Rhinobatidae; Cryptic diversity; Host specificity; Phylogeography; Cytochrome b; Elongation factor 1-alpha; ND4en
dc.titleComparative phylogeography reveals host generalists specialists and cryptic diversity: Hexabothriid microbothriid and monocotylid monogeneans from rhinobatid rays in southern Australiaen
dc.typeJournal articleen
dc.identifier.doi10.1016/j.ijpara.2008.05.017en
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0557697en
pubs.publication-statusPublisheden
dc.identifier.orcidChisholm, L. [0000-0002-4431-1455]en
Appears in Collections:Earth and Environmental Sciences publications
Environment Institute publications

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