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Summary: Molecular Ecology (2006) 15, 35153525 doi: 10.1111/j.1365-294X.2006.02997.x
© 2006 The Authors
Journal compilation © 2006 Blackwell Publishing Ltd
Blackwell Publishing Ltd
Genetic structure at range edge: low diversity and high
inbreedinginSoutheastAsianmangrove(Avicenniamarina)
populations
S. ARNAUD-HAOND,* S. TEIXEIRA,* S. I. MASSA,* C. BILLOT,* P. SAENGER, G. COUPLAND,§
C. M. DUARTE and E. A. SERRÃO*
*CCMAR-CIMAR Laboratório Associado, Universidade do Algarve, Gambelas, 8005-139, Faro, Portugal, IMEDEA (CSIC-UIB),
Instituto Mediterraneo de Estudios Avanzados, C/ Miquel Marques 21, 07190 Esporles, Mallorca; Spain, Centre for Coastal
Management, Southern Cross University, Lismore, Australia, §School of Plant Biology/Faculty of Natural and Agricultural Sciences
M084, The University of Western Australia, 35 Stirling Highway, Crawley WA 6009, Australia
Abstract
Understanding the genetic composition and mating systems of edge populations provides
important insights into the environmental and demographic factors shaping species'
distribution ranges. We analysed samples of the mangrove Avicennia marina from Vietnam,
northern Philippines and Australia, with microsatellite markers. We compared genetic
diversity and structure in edge (Southeast Asia, and Southern Australia) and core (North
and Eastern Australia) populations, and also compared our results with previously published
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