6533b86dfe1ef96bd12c9e70
RESEARCH PRODUCT
Allozyme Similarity in Two Morphologically Distinguishable Populations ofParacentrotus Lividus(Echinodermata) From Distinct Areas of the Mediterranean Coast
Marco ArculeoM.p. PancucciS. Lo BruttoMatteo CammarataNicolò Parrinellosubject
Mediterranean climateMediterranean seaGenetic distanceEvolutionary biologyEcologyPopulation structureMorphological variationPopulation geneticsAquatic ScienceBiologybiology.organism_classificationParacentrotus lividusGene flowdescription
Allozymes ofParacentrotus lividusfrom Palermo Gulf in the northern Sicilian coast (Italy) and from a small body-size population in the western Greek coast (Ionian Sea) were investigated by PAGE. Five of the twenty examined loci were polymorphic(AAT*, ADH*, ME*, PGI*andPGM*)over each population with a polymorphism value of 0–25. Average heterozygosity was equal to 0081 in the Sicilian sample and 0084 in the Greek. Deviations from Hardy-Weinberg equilibrium were significant inME*andPGI*loci (as calculated byy).Nei's (1978) genetic distance (D=0–0025) index described a close identity between the two samples. FSTvalue of polymorphic loci ranged from 0001 to 0029, its mean value (0–008) resulting low and appearing to be discriminate between the samples with a significant difference (P<0–05). The number of migrants per generation was equal to 31.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-02-01 | Journal of the Marine Biological Association of the United Kingdom |