Karyotype Analysis For Seven Species of Clupeiform and Perciform Fishes

The karyotypes of seven species of Clupeiform and Perciform fishes have been studied from kidney and spleen cells by means of injection of colchicine,hypotonic treatment and air-dry technique.The results are as follows.According to this study and other literitures,we discussed the evolution of the karyotypes of Clupeifrom fishes and compared the karyotypes of the related fishes in the order of Perciformes.