在大白鼠骨髓移植实验中,为了了解供体骨髓在受体中的成活情况,我们选用了雄鼠做供体,雌鼠做受体。通过对染色休的核型分析和C带法,识别雄鼠Y染色体,从而了解雄鼠骨髓在雌鼠中是否成活及存在时间。关于大鼠的染色体组型国内材料不多,大白鼠染色体C带法国内尚未见报导。我们根据Hungerford等人的材料对大白鼠做了核型 In the experiment of bone marrow transplantation in rats, in order to understand the survival of the donor bone marrow in the recipient, we used male mice as donors and female mice as recipients. Through the karyotype analysis and C-banding method of staining, the male Y chromosome was identified, so as to know whether the male bone marrow survived and existed in female mice. There are not many domestic chromosomal elements in the rat, and there has been no report in the chromosome C rat chromosome in France. We made karyotypes in rats according to the materials of Hungerford et al.