Biochemical genetic differentiation between Pomatoschistus marmoratus and P. tortonesei (Pisces, Gobiidae).
- 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)
- Parole Chiave: allozymes; species differentiation; genetic distance; Pomatoschistus; Mediterranean Sea.
- OA Link: http://hdl.handle.net/10447/61497
Abstract
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*, PGM- 1,2*, 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.