Search results for "Species differentiation"

showing 3 items of 3 documents

Protein differences among the Mediterranean species of the genus Spicara.

1996

Protein electrophoresis (PAGE) was used to study the three morphologically different species of Spicara (S. flexuosa, S. maena, S. smaris). Of the 28 enzymatic and additional myogenic loci, five monomorphic loci (LDH-1*, G6PD-1*, PGI-1* and two PMMs*) were species-specific markers of S. smaris with respect to S. flexuosa and S. maena. Four of the 28 enzymatic loci were polymorphic (EST-1*, GLDH*, PEPD*, PGI-2*). Discriminating genetic markers were not identified between S. flexuosa and S. maena. Genetic distance (D) as calculated by Nei’s index (1978), between S. smaris v. S. maena and S. flexuosa showed a value, respectively of D=0·137 and 0·141. Between S. flexuosa and S. maena the value …

Mediterranean climateSpicaragenetic distanceEcologyProtein electrophoresis; species differentiation; genetic distance; Spicara; Mediterranean Sea.species differentiationSettore BIO/05 - ZoologiaZoologyAquatic ScienceBiologyGel electrophoresis of proteinsbiology.organism_classificationGenetic distanceGenusGenetic markerBlack seaMediterranean Sea.SpicaraProtein electrophoresiEcology Evolution Behavior and Systematics
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Biochemical genetic differentiation between Pomatoschistus marmoratus and P. tortonesei

1999

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.

Settore BIO/07 - EcologiaGeneticsbiologySettore BIO/05 - ZoologiaZoologyGenetic distanceAquatic Sciencebiology.organism_classificationGenetic differentiationPomatoschistusAllozymeSpecies differentiationGenetic distancePolymorphism (computer science)Genetic markerMediterranean SeaGenetic variabilityPomatoschistuAllelePolyacrylamide gel electrophoresisEcology Evolution Behavior and SystematicsJournal of Fish Biology
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Biochemical genetic differentiation between Pomatoschistus marmoratus and P. tortonesei (Pisces, Gobiidae).

1999

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.

genetic distanceallozymes; species differentiation; genetic distance; Pomatoschistus; Mediterranean Sea.species differentiationSettore BIO/05 - ZoologiaMediterranean Sea.allozymePomatoschistu
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