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Stepping stone gene flow in an estuarine-dwelling sparid from south-east Australia


Burridge, CP and Hurt, AC and Farrington, LW and Coutin, PC and Austin, CM, Stepping stone gene flow in an estuarine-dwelling sparid from south-east Australia, Journal of Fish Biology, 64, (4) pp. 805-819. ISSN 0022-1112 (2004) [Refereed Article]

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DOI: doi:10.1111/j.1095-8649.2004.0347.x


Allozyme and mitochondrial DNA variation was surveyed in Acanthopagrus butcheri to examine the pattern of gene flow among estuaries in south‐east Australia. Allozymes distinguished two peripheral estuaries from the remaining six, although the pattern of genetic variation could owe more to selection than reproductive isolation, and overall structure was small (θ = 0012). In contrast, mitochondrial DNA revealed a high degree of genetic structure (θ = 0263), and a significant relationship with geographic isolation. Consequently, contemporary gene flow mostly between adjacent estuaries, consistent with a one‐dimensional stepping stone model, is evident in south‐east Australia. The data indicate that management of A. butcheri within the study range should be conducted at the scale of individual or geographically proximate estuaries.

Item Details

Item Type:Refereed Article
Keywords:allozyme; estuaries; gene flow; isolation by distance; mitochondrial DNA; stepping stone
Research Division:Biological Sciences
Research Group:Genetics
Research Field:Genetics not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Burridge, CP (Associate Professor Christopher Burridge)
ID Code:59476
Year Published:2004
Web of Science® Times Cited:29
Deposited By:Zoology
Deposited On:2009-12-02
Last Modified:2009-12-09
Downloads:4 View Download Statistics

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