Mitochondrial DNA variability of Octopus vulgaris (Mollusca, Cephalopoda) in the Tunisian Waters

Authors

  • Basma Nafkha Institut National des Sciences et Technologies de la Mer (INSTM) 2025, Rue du 2 mars 1934, Carthage Salammb´, Tunisia
  • Soufia Ezzeddine Institut National des Sciences et Technologies de la Mer (INSTM) 2025, Rue du 2 mars 1934, Carthage Salammb, Tunisia
  • Karima Fadhlaoui-Zid Institut National des Sciences et Technologies de la Mer (INSTM) 2025, Rue du 2 mars 1934, Carthage Salammb, Tunisia

DOI:

https://doi.org/10.24297/jab.v5i1.5348

Keywords:

Octopus vulgaris, Tunisia, Mitochondrial DNA, Cytochrome b gene, Genetic structure.

Abstract

This study provides data on the genetic structuring of Octopus vulgaris in the Tunisian waters. A total of 121 specimens were collected in four locations (one in the western Mediterranean and three in theCentral Mediterranean). A portion of the cytochrome b gene (485pb) of the mitochondrial DNA was analysed. The most relevant result was the high genetic structuring among populations in the study area (ΦST = 0.06851, p <0.0001). Median-joining network analysis did not separate any haplotype group, and haplotype distribution did not mirror the geographic origin of the samples. Populations pairwise ΦST and MDS analyses clearly showed that the populations from the coast are differentiated from the deep sea  populations. For purposes of stock management, these two groups should be considered as separate stocks.

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Published

2014-07-11

How to Cite

Nafkha, B., Ezzeddine, S., & Fadhlaoui-Zid, K. (2014). Mitochondrial DNA variability of Octopus vulgaris (Mollusca, Cephalopoda) in the Tunisian Waters. JOURNAL OF ADVANCES IN BIOLOGY, 5(1), 550–558. https://doi.org/10.24297/jab.v5i1.5348

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