Mitochondrial DNA reveals genetic differentiation between Australian and Indonesian pearl oyster Pinctada maxima (Jameson 1901) populations

Benzie, John A.H., Smith, Carolyn, and Sugama, Ketut (2003) Mitochondrial DNA reveals genetic differentiation between Australian and Indonesian pearl oyster Pinctada maxima (Jameson 1901) populations. Journal of Shellfish Research, 22 (3). pp. 781-787.

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Abstract

A total of 234 individual silver-lipped pearl oyster (Pillctada maxima) from six populations in Australia and two populations in Indonesia were analyzed for genetic variation within a 6S0-base pair region of the mitochondrial DNA COl gene using restriction fragment length polymorphism analysis. The Indonesian populations were markedly different from all Australian populations examined, and the differences were greater than that expected on the basis of their geographical separation. In contrast with this broader regional pattern of genetic differentiation, the Australian populations sampled were not significantly differentiated from one another, and a high degree of connectivity was observed among Western Australian pearl oyster populations. In addition. these genetic data show that Western Australian P. maxima populations have a closer tie to those from the northern Australian coast than with populations in Indonesia. This regional pattern of genetic separation is evident despite the proximity of Indonesia to the eastern Indian Ocean locations sampled and the potential for dispersal afforded by the southward currents of the Indonesian throughflow.

Item ID: 9870
Item Type: Article (Refereed Research - C1)
Keywords: marine science, aquaculture, biogeography, fisheries management, Indo-Pacific, mitochondrial DNA, pearl oyster, Pinctada maxima, population genetics
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ISSN: 1943-6319
Date Deposited: 14 Apr 2010 23:30
FoR Codes: 06 BIOLOGICAL SCIENCES > 0604 Genetics > 060411 Population, Ecological and Evolutionary Genetics @ 100%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960507 Ecosystem Assessment and Management of Marine Environments @ 100%
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