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Multiple origins of the endemic Australian Macrobrachium (Descapoda: Palaemonidae) based on 16S rRNA mitochondrial sequences

journal contribution
posted on 2004-01-01, 00:00 authored by N Murphy, Chris AustinChris Austin
The evolutionary relationships of the freshwater prawn genus Macrobrachium are obscure. Members of this genus are widely distributed across tropical and subtropical regions. The phylogenetic relationships among the seven endemic and six non-endemic Australian Macrobrachium, along with five non-Australian species, were inferred from the mitochondrial 16S rRNA gene sequences. Methods of analysis yielded phylogenetic trees of differing topologies; however, none supported a monophyletic origin for endemic Australian Macrobrachium. Enforced monophyly of a single origin of endemic Macrobrachium was statistically tested and rejected. These results support the view that the endemic Australian Macrobrachium arose from multiple origins. Previous biogeographical hypotheses related to the radiation of Macrobrachium into Australia are re-examined in the context of these results.

History

Journal

Australian journal of zoology

Volume

52

Issue

5

Pagination

549 - 559

Publisher

CSIRO Publishing

Location

Australia

ISSN

0004-959X

eISSN

1446-5698

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2004, CSIRO Publishing

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