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Molecular phylogeny and zoogeography of the freshwater crayfish genus Cherax Erichson (Decapoda: Parastacidae) in Australia

Munasinghe, D. H. N., Burridge, C. P. and Austin, Chris 2004, Molecular phylogeny and zoogeography of the freshwater crayfish genus Cherax Erichson (Decapoda: Parastacidae) in Australia, Biological journal of the Linnean society, vol. 81, pp. 553-563, doi: 10.1111/j.1095-8312.2003.00299.x.

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Title Molecular phylogeny and zoogeography of the freshwater crayfish genus Cherax Erichson (Decapoda: Parastacidae) in Australia
Formatted title Molecular phylogeny and zoogeography of the freshwater crayfish genus Cherax Erichson (Decapoda: Parastacidae) in Australia
Author(s) Munasinghe, D. H. N.
Burridge, C. P.
Austin, ChrisORCID iD for Austin, Chris orcid.org/0000-0003-1848-6267
Journal name Biological journal of the Linnean society
Volume number 81
Start page 553
End page 563
Publisher Blackwell Publishing Ltd
Place of publication Oxford, England
Publication date 2004
ISSN 0024-4066
1095-8312
Keyword(s) 12S rRNA
molecular clock
endemism
Miocene
biogeography
mtDNA
16S rRNA
Summary The evolutionary history and biogeography of freshwater-dependent taxa in Australia is of intrinsic interest given the present-day aridity of this continent. Cherax is the most widespread and one of the most species-rich of Australia's nine freshwater crayfish genera. The phylogenetic relationships amongst 19 of the 23 Australian Cherax were established from mitochondrial DNA sequences representing the 12S rRNA and 16S rRNA gene regions. The relationships among species support an initial east–west separation, followed by a north–south divergence in eastern Australia. Molecular clock estimations suggest that these divergences date back to the Miocene. The phylogenetic relationships support endemic speciation within geographical regions and indicate that long-distance dispersal has not led to recent speciation as previously hypothesized. This new evolutionary scenario is consistent with the climatic history of Australia and the evolutionary history of other similarly distributed freshwater-dependent organisms in Australia.
Language eng
DOI 10.1111/j.1095-8312.2003.00299.x
Field of Research 060302 Biogeography and Phylogeography
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2004, The Linnean Society of London
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002613

Document type: Journal Article
Collection: School of Ecology and Environment
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