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The taxonomy and phylogeny of the Cherax destructor complex (Decapoda : Parastacidae) examined using mitochondrial 16S sequences
journal contribution
posted on 2003-01-01, 00:00 authored by Chris AustinChris Austin, T Nguyen, Maliwan Meewan, D JerryThis study uses nucleotide sequences from the 16S rRNA mitochondrial gene to investigate the taxonomy and phylogeny of freshwater crayfish belonging to the 'Cherax destructor' complex. The sequencing of an approximately 440-bp fragment of this gene region from freshwater crayfish sampled from 14 locations identified significant haplotype diversity. Phylogenetic analysis found three distinct clades that correspond to the species C. rotundus, C. setosus and C. destructor. C. rotundus is largely confined to Victoria, and C. setosus is restricted to coastal areas north of Newcastle in New South Wales. C. destructor is widely distributed in eastern Australia and shows significant phylogeographic structure, with three well supported clades. None of these clades, however, correspond to species previously recognised as C. esculus, C. davisi or C. albidus. The failure to genetically distinguish these morphologically defined species is consistent with reproductive information and morphological plasticity relating to habitat similar to that documented for other Cherax species.
History
Journal
Australian journal of zoologyVolume
51Pagination
99 - 110Publisher
Commonwealth Scientific and Industrial Research OrganizationLocation
Collingwood, Vic.Publisher DOI
ISSN
0004-959XeISSN
1446-5698Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
CSIRO, 2003Usage metrics
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