The taxonomy and phylogeny of the 'Cherax destructor' complex (Decapoda: Parastacidae) examined using mitochondrial 16S sequences

Austin, C.M., Nguyen, T.T.T., Meewan, M. M., and Jerry, D.R. (2003) The taxonomy and phylogeny of the 'Cherax destructor' complex (Decapoda: Parastacidae) examined using mitochondrial 16S sequences. Australian Journal of Zoology, 51 (2). pp. 99-110.

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Abstract

This 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.

Item ID: 5963
Item Type: Article (Refereed Research - C1)
ISSN: 1446-5698
Date Deposited: 14 Jan 2010 05:21
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070401 Aquaculture @ 100%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830199 Fisheries - Aquaculture not elsewhere classified @ 100%
Citation Count from Web of Science Web of Science 16
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