Population Genetic Structure of the New Zealand Estuarine Clam <Emphasis Type="Italic">Austrovenus stutchburyi</Emphasis> (Bivalvia: Veneridae) Reveals Population Subdivision and Partial Congruence with Biogeographic Boundaries |
| |
| Authors: | Philip M Ross Ian D Hogg Conrad A Pilditch Carolyn J Lundquist Richard J Wilkins |
| |
| Institution: | (1) Department of Biological Sciences, University of Waikato, Private Bag 3105, Hamilton, New Zealand;(2) National Institute of Water and Atmospheric Research Limited, P. O. Box 11115, Hamilton, New Zealand |
| |
| Abstract: | We examined the population genetic structure of the New Zealand endemic clam, Austrovenus stutchburyi, to determine (1) whether populations of this estuarine taxon are genetically subdivided and (2) if the locations of genetic
boundaries were congruent with known biogeographic break points. We obtained sequences of the mitochondrial gene cytochrome
c oxidase I for 372 A. stutchburyi from 29 New Zealand estuaries and conducted analyses to identify population genetic structure. We detected a pattern of genetic
isolation by distance and identified six A. stutchburyi subpopulations, a greater number of subpopulations than reported for much of New Zealand’s open coast benthos. Although these
data indicate that long distance dispersal may be less frequent in estuarine than in open coast taxa, partial congruence between
genetic and biogeographic boundaries suggests that historical events and natural selection may also contribute to the observed
population genetic structure. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
