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| 航天诱变凤仙花小孢子母细胞减数分裂的研究 | |
| 引用本文： | 赵燕,汤泽生,杨军,刘平.航天诱变凤仙花小孢子母细胞减数分裂的研究[J].生物学杂志,2004,21(6):32-34. |
| 作者姓名： | 赵燕 汤泽生 杨军 刘平 |
| 作者单位： | 1. 西华师范大学生命科学院;四川省成都市树德中学,成都,610031 2. 西华师范大学生命科学院;四川南充航天农业有限公司 3. 西华师范大学生命科学院;西华师范大学珍稀动植物研究所,四川,南充,637002 4. 四川南充航天农业有限公司 |
| 摘 要： | 对卫星搭载凤仙花与对照组的小孢子母细胞减数分裂以及四分孢子期内的小孢子数目、形状进行了对比研究，发现经过航天搭载的凤仙花种子在第一代(SP1)植物的小孢子母细胞减数分裂中出现了染色体桥、落后染色体和分散染色体；四分孢子时期易出现多分孢子及四分孢子不分离等现象。而对照组则很难发现染色体畸变和小孢子的异常现象。 |
| 关 键 词： | 航天诱变 凤仙花 减数分裂 染色体畸变 多分孢子 |
| 文章编号： | 1008-9632(2004)06-0032-03 |
| 修稿时间： | 2004年7月14日 |
Meiosis in pollen mother cells of Impation Balsamina induced by space flight |
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| ZHAO Yan.Meiosis in pollen mother cells of Impation Balsamina induced by space flight[J].Journal of Biology,2004,21(6):32-34. | |
| Authors: | ZHAO Yan |
| Abstract: | Several mutant plants were generated from space-flight induced impations balsamina seeds,and meiosis and microspores in tetraspore period were investigated in mutant plants and normal plants respectively. Chromosomal circle and dispersal chromosome were found in the course of meiosis in these plants.It was easy to observe high frequency of paraspores and dissegregated microspores in these parapores.While it was difficult to find chromosome mutation and abnomal microspores in normal plant. |
| Keywords: | aero-space flight impation balsamina meiosis chromosomal aberration high frequency of paraspores |
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