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Cryptic diversity in Engaeus Erichson, Geocharax Clark and Gramastacus Reik (Decapoda: Parastacidae) revealed by mitochondrial 16S r DNA sequences
Citation
Schultz, MB and Smith, SA and Richardson, AMM and Horwitz, P and Crandall, KA and Austin, CM, Cryptic diversity in Engaeus Erichson, Geocharax Clark and Gramastacus Reik (Decapoda: Parastacidae) revealed by mitochondrial 16S r DNA sequences, Invertebrate Systematics, 21, (6) pp. 569-587. ISSN 1445-5226 (2007) [Refereed Article]
DOI: doi:10.1071/IS07019
Abstract
Nucleotide sequence data from the mitochondrial 16S rDNA region were utilised to investigate phylogenetic relationships and species boundaries among Australian freshwater crayfish belonging to the genera Engaeus Erichson, 1846, Geocharax Clark, 1936 and Gramastacus Riek, 1972. Geocharax and Gramastacus were found to be monophyletic genera but one species currently assigned to Engaeus may belong to another genus. Relationships between the three existing genera were not resolved. Analysis of species boundaries within Geocharax suggests that there are an additional two species in this genus, and our analysis of Gramastacus indicates that undescribed populations from central New South Wales may comprise a second species. The data provide at least one instance of a taxon crossing the Great Dividing Range and provide confirmation of previously proposed hypotheses seeking to explain trans-Bass Strait distributions of species. © CSIRO 2007.
Item Details
Item Type: | Refereed Article |
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Research Division: | Biological Sciences |
Research Group: | Evolutionary biology |
Research Field: | Animal systematics and taxonomy |
Objective Division: | Environmental Management |
Objective Group: | Terrestrial systems and management |
Objective Field: | Terrestrial biodiversity |
UTAS Author: | Richardson, AMM (Associate Professor Alastair Richardson) |
ID Code: | 49877 |
Year Published: | 2007 |
Web of Science® Times Cited: | 22 |
Deposited By: | TAFI - Zoology |
Deposited On: | 2007-08-01 |
Last Modified: | 2009-10-29 |
Downloads: | 0 |
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