Through the method of half-micro blood lymphocytic cell cultivation , the clear metaphase chromosome pattern of Cichlasoma managuense was obtained, the result indicated that the diploid chromosome number was 2n=44, chromosome formula was 4sm+26st+14t, NF=48, there was no difference between male and female .%利用微量全血培养法对淡水石斑鱼的染色体数目和核型进行了分析，结果表明，淡水石斑鱼染色体数目为2n＝44，核型公式为4 sm＋26 st＋14 t，染色体臂数（NF）＝48。雌雄无差异。
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