Eastern and Western Poor Cod (Trisopterus minutus capelanus) Populations in the Mediterranean Sea: Evidence from Allozyme and Minisatellite Loci |
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| Authors: | Valeria Mattiangeli Anthony W Ryan Paul Galvin Jarle Mork & Thomas F Cross |
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| Institution: | NTNU, Trondhjem Biological Station, N-7491 Trondheim, Norway.; Department of Zoology and Animal Ecology, Aquaculture Development Centre, Lee Maltings, Prospect Row, National University of Ireland, Cork, Ireland.; National Microelectronics Research Centre, Lee Maltings, Prospect Row, National University of Ireland, Cork, Ireland.; Present address: Department of Genetics, Trinity College, Dublin 2, Ireland. |
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| Abstract: | Abstract. Nine allozyme and two minisatellite loci were used to investigate potential genetic differentiation among three samples of Mediterranean poor cod, Trisopterus minutus capelanus, from the Gulf of Lion, the Tuscan Archipelago and the Aegean Sea. Both types of markers showed consistent results, with FST values of 0.0262 and 0.0296 (P < 0.0015, after Bonferroni correction for multiple tests) for allozymes and minisatellites, respectively. Allele frequency heterogeneity tests between pairs of samples showed a clear separation between the two western Mediterranean samples (Gulf of Lion, Tuscan Archipelago) and the eastern one (Aegean Sea). The results indicate that at least two reproductively isolated populations of poor cod occur in the Mediterranean. |
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| Keywords: | Mediterranean poor cod minisatellites population structure Trisopterus minutus capelanus VNTR |
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