• Korean Journal of Fisheries and Aquatic Sciences
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• v.34 no.1
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• pp.17-20
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• 2001

Cytogenetic characteristics of three species in Centropomidae (Coreoperca herzi, C. kawamebari and Siniperca schezeri) were evaluated, based on karyologcial analysis, erythrocytic measurement and genome size estimation using flow cytometry. Modal chromosome number of three species was same as 2n=48. Karyotypes were 4SM+44A$\cdot$T (NF=52) for Coreoperca herzi, 6SM+42 A$\cdot$T (NF=52) for C. kawamebari and 4SM+44A$\cdot$T (NF=52) for Siniperca schezeri. Heteromorphic sex chromosome was not found in both sexes of any species examined, Cellular and nuclear volumes of Siniperca schezeri were smaller than those of other two species, Average amounts of cellular DNA contents estimated by flow cytometry were well coincided with erythrocytic sizes. The estimated genome sizes were 1.83, 1.85 and 1.44 pg/cell for C. herzi, C. kawamebari and S. schezeri, respectively.