Genetic divergence among and within four Italian populations ofAphanius fasciatus(Teleostei, Cyprinodontiformes)
| Autor: | Concetta Tigano, Vincenzo Stingo, A. Marsilio, Anna Maria Pappalardo, Lucia Rocco, Venera Ferrito, Domenico Costagliola |
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| Přispěvatelé: | Rocco, Lucia, V., Ferrito, D., Costagliola, A., Marsilio, A. M., Pappalardo, Stingo, Vincenzo, C., Tigano |
| Rok vydání: | 2007 |
| Předmět: |
RAPD-PCR
0106 biological sciences Teleostei Mitochondrial DNA biology Ecology Killifish 010604 marine biology & hydrobiology MtDNA mtDNA genetic population structure Aphanius Zoology Genetic population structure biology.organism_classification 010603 evolutionary biology 01 natural sciences RAPD Genetic divergence Genetic distance Genetic variation Animal Science and Zoology 14. Life underwater Cyprinodontiformes |
| Zdroj: | Italian Journal of Zoology. 74:371-379 |
| ISSN: | 1748-5851 1125-0003 |
| Popis: | Due to the natural fragmentation of its habitats, Aphanius fasciatus, a Cyprininodontid living in coastal brackish-water habitats, is distributed discontinuously with considerable isolation of its populations, and characterized by a high degree of osteological and genetic differentiation among them. The genetic relationships in four different Italian populations were studied using the control region (D-loop) mitochondrial DNA sequence and the polymorphisms generated by RAPD-PCR. The results revealed a well-defined genetic structuring, that was also confirmed by the high Gst and Fst values, and a close relationship between the populations of Ganzirri and Lesina, as well as the isolation of the other two Sicilian populations. Moreover, with respect to the mitochondrial DNA analyses, the total genetic variance was higher among populations, but lower in the case of the RAPD polymorphisms. |
| Databáze: | OpenAIRE |
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