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The role of the Strait of Gibraltar in shaping the genetic structure of the Mediterranean Grenadier, Coryphaenoides mediterraneus, between the Atlantic and Mediterranean Sea

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  • Diana Catarino
  • Sergio Stefanni
  • Per Erik Jorde
  • Gui M Menezes
  • Joan B Company
  • Francis Neat
  • Halvor Knutsen

Abstract

Population genetic studies of species inhabiting the deepest parts of the oceans are still scarce and only until recently we started to understand how oceanographic processes and topography affect dispersal and gene flow patterns. The aim of this study was to investigate the spatial population genetic structure of the bathyal bony fish Coryphaenoides mediterraneus, with a focus on the Atlantic–Mediterranean transition. We used nine nuclear microsatellites and the mitochondrial cytochrome c oxidase I gene from 6 different sampling areas. No population genetic structure was found within Mediterranean with both marker types (mean ΦST = 0.0960, FST = -0.0003, for both P > 0.05). However, within the Atlantic a contrasting pattern of genetic structure was found for the mtDNA and nuclear markers (mean ΦST = 0.2479, P 0.05). When comparing samples from Atlantic and Mediterranean they exhibited high and significant levels of genetic divergence (mean ΦST = 0.7171, FST = 0.0245, for both P

Suggested Citation

  • Diana Catarino & Sergio Stefanni & Per Erik Jorde & Gui M Menezes & Joan B Company & Francis Neat & Halvor Knutsen, 2017. "The role of the Strait of Gibraltar in shaping the genetic structure of the Mediterranean Grenadier, Coryphaenoides mediterraneus, between the Atlantic and Mediterranean Sea," PLOS ONE, Public Library of Science, vol. 12(5), pages 1-24, May.
    • Handle: RePEc:plo:pone00:0174988
    DOI: 10.1371/journal.pone.0174988
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