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Electrophoretic study of gene enzyme systems in oysters classified as crassostrea gigas and crassostrea angulata mollusca ostreidae


Parassitologia (Rome) 25(1): 21-28
Electrophoretic study of gene enzyme systems in oysters classified as crassostrea gigas and crassostrea angulata mollusca ostreidae
As a further contribution to the systematics of species belonging to the genus Crassostrea, electrophoretic studies of gene-enzyme system have been carried out on 5 populations of oysters regarded as either C. gigas or C. angulata species. Two populations of C. gigas from Japan (Karakawa and Hiroshima), 1 of C. gigas from France (Fouras), 1 of C. angulata from Portugal (Sado) and 1 of Crassostrea sp. from Italy (Chioggia) were examined. The electrophoretic study of 20 enzyme loci and the genetic distance value showed no significant genetic divergence among the Crassostrea sp. populations. Results seem to confirm and extend to other populations those of Buroker et al. (1979), indicating a remarkable genetical identity between C. gigas and C. angulata.


Accession: 005349045



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