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Systematics of the Atlantic–Mediterranean soles Pegusa impar, P. lascaris, Solea aegyptiaca, S. senegalensis, and S. solea (Pleuronectiformes: Soleidae)

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Abstract:

Nucleotide-sequence variation at the cytochrome b locus was investigated in five Solea species, with a re appraisal of meristic data and a review of allozyme data pertinent to their systematics. Solea aegyptiaca, considered a synonym of Solea solea, and Solea (Pegusa) impar, considered a synonym of S. (P.) lascaris, are shown to be valid species according to the morphological, phylogenetic, genotypic, and biological species definitions. The validity of the genus Pegusa was examined in the light of both allozyme and cytochrome b gene sequence data.

Les séquences nucléotidiques au locus du cytochrome b ont été analysées chez cinq espèces du genre Solea, et conjointement une ré-évaluation des données méristiques et une synthèse des données génétiques pertinentes à leur systématique ont été faites. La distinction entre Solea aegyptiaca et Solea solea, ainsi que celle entre Solea (Pegusa) impar et S. (P.) lascaris, toutes deux ayant été remises en cause dans la littérature, sont pourtant en plein accord avec les définitions morphologique, phylogénétique, génotypique et biologique de l'espèce. La validité du genre Pegusa est examinée à la lumière des données allozymiques et des données sur les séquences au locus du cytochrome b.

Document Type: Research Article

Publication date: December 1, 2001

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  • Published since 1929, this monthly journal reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
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