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Genetic structure in the coral-reef-associated Banggai cardinalfish, Pterapogon kauderni
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.ORCID iD: 0000-0001-5791-336X
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
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2005 (English)In: Molecular Ecology, ISSN 0962-1083, E-ISSN 1365-294X, Vol. 14, no 5, 1367-1375 p.Article in journal (Refereed) Published
Abstract [en]

In this study, we used 11 polymorphic microsatellite loci to show that oceanic distances as small as 2–5 km are sufficient to produce high levels of population genetic structure (multilocus FST as high as 0.22) in the Banggai cardinalfish(Pterapogon kauderni), a heavily exploited reef fish lacking a pelagic larval dispersal phase. Global FST among all populations, separated by a maximum distance of 203 km, was 0.18 (RST = 0.35). Moreover, two lines of evidence suggest that estimates of FST may actually underestimate the true level of genetic structure. First, within-locus FST values were consistently close to the theoretical maximum set by the average within-population heterozygosity. Second, the allele size permutation test showed that RST values were significantly larger than FST values, indicating that populations have been isolated long enough for mutation to have played a role in generating allelic variation among populations. The high level of microspatial structure observed in this marine fish indicates that life history traits such as lack of pelagic larval phase and a good homing ability do indeed play a role in shaping population genetic structure in the marine realm.

Place, publisher, year, edition, pages
2005. Vol. 14, no 5, 1367-1375 p.
Keyword [en]
allele size permutation test, Banggai cardinalfish, coral reef, fish, population genetic structure, Pterapogon kauderni
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-76755DOI: 10.1111/j.1365-294X.2005.02538.xOAI: oai:DiVA.org:uu-76755DiVA: diva2:104667
Available from: 2006-03-07 Created: 2006-03-07 Last updated: 2014-09-26Bibliographically approved

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Publisher's full texthttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2005.02538.x/abstract

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