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Biochemical genetic differentiation between Pomatoschistus marmoratus and P. tortonesei

  • Autori: Arculeo, M.; Mauro, A.; Lo Brutto, S.; Mirto, S.; Cammarata, M.; Mazzola, A.; Parrinello, N.
  • Anno di pubblicazione: 1999
  • Tipologia: Articolo in rivista (Articolo in rivista)
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Several diagnostic genetic markers were identified in Pomatoschistus marmoratus and P. tortonesei using polyacrylamide gel electrophoresis (PAGE) of allozymes. Twenty-one loci were resolved, including the electrophoretic pattern of muscle proteins. The MDH*, PGM1,2*, EST-1,2*, FUM* and PGI-2* loci exhibited different alleles which were fixed for the two species being analysed. Genetic distance, as calculated by Nei's index, showed a value of 0.413. Environmental hypersalinity, could have influenced the geographical distribution of P. tortonesei.