Remarkably low mtDNA control region diversity in an abundant demersal fish

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dc.contributor.authorvon der Heyden S.
dc.contributor.authorLipinski M.R.
dc.contributor.authorMatthee C.A.
dc.date.accessioned2011-05-15T15:57:19Z
dc.date.available2011-05-15T15:57:19Z
dc.date.issued2010
dc.description.abstractCape hake, Merluccius paradoxus, is a valuable commercially exploited demersal species. Using the 5′ mtDNA control region we show that 96% of 1013 fishes sampled over a three-year period share one of two dominant haplotypes; 19 haplotypes were recovered in total, suggesting a genetically homogenous population of fish. Accordingly, haplotype and nucleotide diversities are low (h = 0.53, π = 0.0014); an asymptotic haplotype accumulation curve suggests that few additional haplotypes exist. Comparing h and π with other fish species shows that M. paradoxus and other southern African fish species have remarkably low genetic diversity values compared with other global marine fishes. Despite low genetic variability, frequency differences among M. paradoxus haplotypes suggest weakly structured populations between Namibia and South Africa. However, given the remarkably homogeneous mtDNA population genetic structure between fishes sampled along 1800 km, it is clear that faster evolving markers such a microsatellites are also needed before inferences can be made regarding stock identification and management of this species. © 2009 Elsevier Inc. All rights reserved.
dc.description.versionArticle
dc.identifier.citationMolecular Phylogenetics and Evolution
dc.identifier.citation55
dc.identifier.citation3
dc.identifier.issn10557903
dc.identifier.other10.1016/j.ympev.2009.09.018
dc.identifier.urihttp://hdl.handle.net/10019.1/10334
dc.subjectmicrosatellite DNA
dc.subjectmitochondrial DNA
dc.subjectanimal
dc.subjectarticle
dc.subjectclassification
dc.subjectDNA sequence
dc.subjectGadiformes
dc.subjectgenetic variability
dc.subjectgenetics
dc.subjecthaplotype
dc.subjectNamibia
dc.subjectpopulation genetics
dc.subjectsequence alignment
dc.subjectSouth Africa
dc.subjectAnimals
dc.subjectDNA, Mitochondrial
dc.subjectGadiformes
dc.subjectGenetic Variation
dc.subjectGenetics, Population
dc.subjectHaplotypes
dc.subjectMicrosatellite Repeats
dc.subjectNamibia
dc.subjectSequence Alignment
dc.subjectSequence Analysis, DNA
dc.subjectSouth Africa
dc.subjectMerluccius capensis
dc.subjectMerluccius paradoxus
dc.subjectPisces
dc.titleRemarkably low mtDNA control region diversity in an abundant demersal fish
dc.typeArticle
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