Population genetic structure and demographic history of Aphanius fasciatus (Cyprinodontidae: Cyprinodontiformes) from hypersaline habitats in the eastern Adriatic

Authors

  • Ivana Buj Department of Zoology, Faculty of Science, University of Zagreb
  • Jure Miočić-Stošić Department of Zoology, Faculty of Science, University of Zagreb
  • Zoran Marčić Department of Zoology, Faculty of Science, University of Zagreb
  • Perica Mustafić Department of Zoology, Faculty of Science, University of Zagreb
  • Davor Zanella Department of Zoology, Faculty of Science, University of Zagreb
  • Milorad Mrakovčić Department of Zoology, Faculty of Science, University of Zagreb
  • Tanja Mihinjač Department of Zoology, Faculty of Science, University of Zagreb
  • Marko Ćaleta Faculty of Teacher Education, University of Zagreb

DOI:

https://doi.org/10.3989/scimar.04198.06A

Keywords:

colonization, conservation priorities, divergence, evolution, genetic diversity, South European toothcarp

Abstract


In order to investigate the phylogeography and population genetic structure of the South European toothcarp (Aphanius fasciatus), we analysed gene sequences of two mitochondrial markers (cytochrome b and mtDNA control region) in samples from eight localities along the eastern Adriatic coast and combined them with sequences from other Mediterranean localities. Since the South European toothcarp primarily inhabits hypersaline water bodies, it is a good model species for understanding patterns of colonization and dispersal of species adapted to variable conditions. The eastern Adriatic populations are separated into two groups of genetically related populations. The Northern group contains the populations from Sečovlje, Pag, Dinjiška, Nin and Pantan, whereas the Southern group contains the populations from Ston, Ulcinj and Narta. The majority of divergence events date back to the Pleistocene epoch and it is likely that sea level changes during glacial cycles played a significant role in shaping the recent genetic structure of this species. Our results imply pronounced intraspecific structuring of this species, whereas great environmental variations resulted in a smaller intrapopulational genetic diversity of A. fasciatus than seen in other Mediterranean fishes.

Downloads

Download data is not yet available.

Published

2015-12-30

How to Cite

1.
Buj I, Miočić-Stošić J, Marčić Z, Mustafić P, Zanella D, Mrakovčić M, Mihinjač T, Ćaleta M. Population genetic structure and demographic history of Aphanius fasciatus (Cyprinodontidae: Cyprinodontiformes) from hypersaline habitats in the eastern Adriatic. scimar [Internet]. 2015Dec.30 [cited 2022Aug.17];79(4):399-408. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1606

Issue

Section

Featured Article