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对以长白六号为细胞核,“野败”、“冈”、“红莲”、“滇”、“B-T”为细胞质的五种同核异质不育系作了细胞学比较。上述不育系花粉母细胞减数分裂的染色体畸变是:多极分裂、疏松配对、倒位、四价体、互锁染色体、不等分离、拖曳、桥、落后等;五种不育系的减数分裂指数为17.5—57.3％,说明减数分裂异常。小孢子发育过程出现程度不等的败育现象,表现为花粉皱缩、粘连、花粉溶解、巨核花粉、多萌发孔花粉、液泡化花粉,及KI-I染色异常。研究结果支持褚圻对现有不育系的分类。
Cytological comparisons of five isoforms of homonuclear allogeneic sterile lines with cytoplasm of Changbai 6 as nucleus, “wild defeat”, “Gang”, “Honglian”, “Dian” and “B-T” The chromosome aberrations of meiosis of pollen mother cells in the CMS lines were: multipolar division, loose pairing, inverted position, tetravalent body, interlocking chromosomes, unequal separation, towing, bridging and backwardness; Meiosis index was 17.5-57.3%, indicating abnormal meiosis. Occurrence of microspore development in varying degrees of abortion phenomenon, manifested as pollen shrinkage, adhesions, pollen lysis, megakaryon pollen, pollen germination holes, vacuole pollen, and KI-I staining abnormalities. The results support Chu 圻 classification of existing sterile lines.