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Molecular Genetic Evidence for a New Species of Bream of the Genus Acanthopagrus Peters (Perciformes: Sparidae)

journal contribution
posted on 2001-01-01, 00:00 authored by A Hurt, N Murphy, J Patil, Chris AustinChris Austin
Fishes of the genus Acanthopagrus are found throughout the coastal waters of Asia and Australia with several species being of commercial significance. In this study, genetic comparisons are made between widely disjunct populations of Acanthopagrus australis (Günther) from Australian and Taiwanese waters and among samples of A. butcheri (Munro), A. berda, (Forskal), A schlegeli (Day) and A. latus (Houttuyn) using mitochondrial DNA sequences obtained from the control region. The mean interspecific pairwise sequence divergence for all species is 17%, while the divergence between A. australis from Australia and that of Taiwan is slightly larger at 18%. These values are considerably higher than those found for intraspecific control region comparisons in some fish species. Phylogenetic analyses indicate that A. australis from Australia is more closely related to the Australian species A. butcheri than to A. australis from Taiwan. These findings suggest that the northern and southern hemisphere forms of A. australis are not monophyletic, with the former possibly representing a new undescribed species of Acanthopagrus.

History

Journal

Asian fisheries science

Volume

14

Issue

4

Pagination

427 - 435

Publisher

Asian Fisheries Society

Location

Philippines

ISSN

0116-6514

Language

eng

Publication classification

C3 Non-refereed articles in a professional journal

Copyright notice

2001, Asian Fisheries Society

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