Microscope observation on the process of pollen mother cell meiosis showed that lagging chromosomes, asymmetric division, asynchronous division, multipolar division, and micronuclei were the main cause to result in the abortion of pollen grains.
对不育系花粉母细胞减数分裂过程的观察显示其减数分裂异常，出现落后染色体、不对称分裂、不同步分裂、多极分裂和微核等现象。
参考来源 - 棉花转基因聚合的杂种优势和转基因雄性不育性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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