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应用改良石碳酸品红染色、压片，在显微镜下观察。甘蓝型油菜异核型雄性不育材料BC5减数分裂过程的各时期均出现异常现象，染色体配对不正常而形成单价体，染色体落后，染色体不均等分裂，三分体和多分体形成，最终不能发育为正常的小孢子。相应的保持材料F9的减数分裂过程正常，形成正常的四分孢子。
Application of modified carbonate fuchsin stained, compressed, observed under a microscope. Abnormal phenomena occurred in all stages of the meiosis process of isoforms of heterozygous male sterile BC5 in cabbage. Chromosome pairing was not normal to form monovalent chromosomes, and the chromosomes were lagging, the chromosomes were unequally divided, and the trisomies and multi-bodies formed. Development of normal microspores. The meiotic process of the corresponding holding material F9 was normal, forming a normal tetrad spore.