Population genetic structure of Epinephelus marginatus in the Central Mediterranean Sea (Gulf of Gabe¨s and the coast of Libya)

Authors

  • Aziza Elglid National Institute of Marine Sciences and Technology (INSTM). Tunisia
  • Brigitte Crouau-Roy Laboratory of Evolution and Diversity Biology (EDB) UMR 5174, CNRS-Univ. P. Sabatier .Toulouse
  • Mohamed Nejmeddine Bradai National Institute of Marine Sciences and Technology (INSTM). Tunisia
  • Karima Fadhlaoui-Zid National Institute of Marine Sciences and Technology (INSTM). Tunisia

DOI:

https://doi.org/10.24297/jab.v8i2.3818

Keywords:

Genetic structure, Mitochondrial DNA, Cytochrome b gene, Microssatellite, Central Mediterranean Sea, Epinephelus marginatus

Abstract

In the present study, mitochondrial DNA sequences from the cytochrome b (cytb) gene and seven nuclear microsatellites were examined to assess the genetic diversity of Epinephelus marginatus inhabiting Tunisian and Libyan coastal waters.  Based on 940 base pairs of the cytochrome b segment, we found low level of genetic variability for the two samples analysed (h = 0.294 ± 0.097and h = 0.274± 0.142 respectively in Tunisia and Libya).  An analysis of molecular variance (AMOVA) showed significant pattern of genetic structure based on nuclear data (7 microsatellite loci) (ΦST= 0.28487; P < 0.001). Conversely, no genetic structuring was found for mtDNA (ΦST = -0.0121). In summary, this study provides preliminary assessment of geographical patterns of differentiation of E. marginatus in this region for conservation, management and stock identification.

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Published

2015-11-24

How to Cite

Elglid, A., Crouau-Roy, B., Bradai, M. N., & Fadhlaoui-Zid, K. (2015). Population genetic structure of Epinephelus marginatus in the Central Mediterranean Sea (Gulf of Gabe¨s and the coast of Libya). JOURNAL OF ADVANCES IN BIOLOGY, 8(2), 1571–1580. https://doi.org/10.24297/jab.v8i2.3818

Issue

Vol. 8 No. 2 (2015)

Section

Articles

License

Creative Commons License All articles published in Journal of Advances in Linguistics are licensed under a Creative Commons Attribution 4.0 International License.