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  • Title: [Multilocus allozyme differentiation of populations of the mussel Mytilus galloprovincialis Lmk. from Moroccan coasts].
    Author: Jaziri H, Benazzou T.
    Journal: C R Biol; 2002 Dec; 325(12):1175-83. PubMed ID: 12520867.
    Abstract:
    Along the Moroccan coasts, the systematic status of Mytilus populations have been for a long time uncertain and confused, due to the use of unreliable morphometric criteria. In the present study, allozyme markers reveal the exclusive existence of M. galloprovincialis on Mediterranean and Atlantic coasts. Nei's genetic distances are low and reflect a high gene flow between Atlantic and Mediterranean populations. However, a significant multilocus discontinuity revealed by F-statistics separate southern Atlantic populations from Mediterranean and north Atlantic ones and could be explained by a gene flow breaking because of a larval dispersal decrease, due to a sea surface current direction change from Cap Ghir towards the Canaries archipelago, and probably by differential selection effects in these two geographic areas.
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