Genetic variation at ribosomal genes supports the existence of two different European subspecies in the megrim Lepidorhombus whiffiagonis
Garcia-Vazquez, E.; Izquierdo, J.I.; Perez, J. (2006). Genetic variation at ribosomal genes supports the existence of two different European subspecies in the megrim Lepidorhombus whiffiagonis. J. Sea Res. 56(1): 59-64. https://dx.doi.org/10.1016/j.seares.2006.04.001
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, more
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| Keywords |
Bioselection > Genetic drift
Biotic barriers
Disciplines > Biology > Genetics > Population genetics > Gene flow
Isolating mechanisms > Genetic isolation
Lepidorhombus whiffiagonis (Walbaum, 1792) [WoRMS]
Atlantic North East [Marine Regions]; Mediterranean [Marine Regions]; MED, Gibraltar Strait [Marine Regions]
Marine/Coastal |
| Author keywords |
flatfish; gene flow; genetic differentiation; Lepidorhombuswhiffiagonis; Mediterranean Sea; ribosomal genes; sequence variation |
| Authors | | Top |
- Garcia-Vazquez, E., more
- Izquierdo, J.I.
- Perez, J.
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| Abstract |
Samples of common megrim (Lepidorhombus whiffiagonis) caught in six different areas in Atlantic and Mediterranean waters were genetically analysed for variation at one mitochondrial gene, 16S rDNA, and one nuclear locus, 5S rDNA. Differences between regions for both genes at sequence level support the existence of two differentiated subspecies totally isolated at genetic level, one in the Mediterranean Sea and other in the Atlantic Ocean. The Strait of Gibraltar and/or the Oran-Almeria Front probably represent an impassable barrier for this species. The results are discussed in the context of the existence of genetic population substructure in marine fish species. |
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