Population genetic structure of the perlemoen Haliotis midae in South Africa: evidence of range expansion and founder events
2004; Inter-Research; Volume: 270; Linguagem: Inglês
10.3354/meps270163
ISSN1616-1599
AutoresBS Evans, Neville Sweijd, Rauri C. K. Bowie, PA Cook, NG Elliott,
Tópico(s)Marine Biology and Ecology Research
ResumoMEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 270:163-172 (2004) - doi:10.3354/meps270163 Population genetic structure of the perlemoen Haliotis midae in South Africa: evidence of range expansion and founder events B. S. Evans1,2,4,*, N. A. Sweijd3, R. C. K. Bowie3,5, P. A. Cook3, N. G. Elliott2 1School of Zoology, University of Tasmania, GPO Box 252-05, Hobart, Tasmania 7001, Australia 2CSIRO Marine Research, GPO Box 1538, Hobart, Tasmania 7001, Australia 3Department of Zoology, University of Cape Town, Private Bag, Rondebosch 7701, Cape Town, South Africa 4Present address: School of Marine Biology and Aquaculture, James Cook University, Townsville, Queensland 4811, Australia 5Present address: Department of Zoology, University of Stellenbosch, Private Bag XI, Matieland 7602, South Africa *Email: brad.evans@jcu.edu.au ABSTRACT: Genetic diversity in Haliotis midae, a highly valued and heavily exploited marine gastropod, was assessed using 3 marker types across samples from the species¹ range in South Africa. Variation was compared at 7 allozyme loci, 2 regions of mitochondrial DNA and 3 microsatellite loci. We conclude that populations of H. midae on either side of Cape Agulhas represent 2 independent reproductive stocks. The area of transition between the stocks coincides with oceanographic features of the region. Evidence from all 3 types of genetic marker indicates an isolated introduction event to the east of Cape Agulhas, and subsequent range expansion in an easterly direction. The disparity between allozyme data and the other 2 forms is seen as further evidence for the presence of balancing selection at allozyme loci. KEY WORDS: Allozymes · Mitochondrial DNA · Microsatellites · Abalone Full text in pdf format Supplementary Appendices PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 270. Online publication date: April 14, 2004 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2004 Inter-Research.
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