Genetic structure of the common sole Solea vulgaris at different geographic scales

TitleGenetic structure of the common sole Solea vulgaris at different geographic scales
Publication TypeJournal Article
Year of Publication1995
AuthorsKotoulas, G, Bonhomme F, Borsa P
JournalMarine Biology
Volume122
Issue3
Pages361 - 375
Abstract

The genetic structure of the flatfish Solea vulgaris was investigated on several spatial scales and at the temporal level through analysis of electrophoretic variation at 8 to 12 polymorphic enzyme loci. No differentiation was apparent at the temporal scale. Some differentiation was detected at and above the regional scale. Isolation by distance was evidenced by the significant correlation between genetic and geographic distances, and by the consistency of the results of multiple-locus correspondence analysis with geographic sampling patterns. The analysis suggested that the geographic unit of population structure (i.e. a geographical area corresponding to a panmictic or nearly panmictic population) lies within a radius of the order of 100 km. The isolation-by-distance pattern in S. vulgaris contrasted with the known genetic structures of other flatfish species of the northeastern Atlantic and Mediterranean in a way that may be related to the range of their respective temperature tolerances for eggs and larvae.

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