Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Quaternary geographical sibling speciation and population structuring in the Eastern Atlantic skates (suborder Rajoidea) Raja clavata and R. straeleni
Pasolini, P.; Ragazzini, C.; Zaccaro, Z.; Cariani, A.; Ferrara, G.; Gonzalez, E.G.; Landi, M.; Milano, I.; Stagioni, M.; Guarniero, I.; Tinti, F. (2011). Quaternary geographical sibling speciation and population structuring in the Eastern Atlantic skates (suborder Rajoidea) Raja clavata and R. straeleni. Mar. Biol. (Berl.) 158(10): 2173-2186. http://dx.doi.org/10.1007/s00227-011-1722-7
In: Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, meer
|  |
| Auteurs | | Top |
- Pasolini, P.
- Ragazzini, C.
- Zaccaro, Z.
- Cariani, A.
|
- Ferrara, G.
- Gonzalez, E.G.
- Landi, M.
- Milano, I.
|
- Stagioni, M.
- Guarniero, I.
- Tinti, F., meer
|
| Abstract |
The European Raja clavata and the South African R. straeleni are marine skates which exhibit highly conserved morphological and ecological traits. Owing to this, taxonomic and evolutionary relationships between the two taxa have not yet fully elucidated. Here, we have tested the hypothesis that restricted gene flow and genetic divergence between these taxa might be associated with climatic/oceanographic discontinuities by surveying genetic variation in ten geographical samples at control region (CR) and amplified fragment length polymorphism (AFLP) loci. The clustering of CR haplotypes in two reciprocally monophyletic clades consistent with taxon zoogeography and the significant AFLP F values between the European and South African populations indicated the two taxa as recently diverged peripatric sibling species. Within each species, significant spatial genetic heterogeneity among samples at both markers revealed population structuring. We argued that structured populations and isolated sibling species might represent two stages of geographical speciation. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
