Skip to main content

Genetic structure of the killifish Aphanius fasciatus, Nardo 1827 (Teleostei, Cyprinodontidae), results of mitochondrial DNA analysis

Buy Article:

$43.00 plus tax (Refund Policy)

Aphanius fasciatus is a cyprinodont distributed in the salty coastal water of the central and eastern Mediterranean Sea and occasionally in internal fresh water. In this work, the authors have investigated the genetic structure of eight populations of the killifish A. fasciatus from Sardinia and Sicily. The comparison of the mtDNA control region of 237 individuals revealed a total of 49 haplotypes. Several unique haplotypes were present in each population, and no common haplotype was found among Sicilian and Sardinian populations. Almost all Sardinian populations shared a common haplotype, and indeed the four Sicilian populations examined did not share any as determined by the parsimony network analysis. The analysis of molecular variance showed that the percentage of variation among populations is much higher than within each population of A. fasciatus. The overall FST value is very high (0ยท78) and supports an extensive genetic structure of the populations. The observed genetic differentiations of A. fasciatus populations were discussed taking into account the palaeogeographic and palaeoclimatic events that interested the Mediterranean area from Miocenic to Pleistocenic age. The results provide new insight into the knowledge of the pattern of genetic structure and of evolutionary processes occurring in this species.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: Aphanius fasciatus; control region; gene flow; intraspecific variation; mtDNA

Document Type: Regular Paper

Affiliations: 1: University of Catania, Department of Animal Biology “Marcello. La Greca”, Catania, Italy 2: University of Catania, Department of Chemical Science, Catania, Italy 3: University of Padua, Department of Public Health, Comparative Pathology and Veterinary Hygiene, Padua, Italy

Publication date: 2008-04-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more