| 航天诱变对甘蓝型油菜根尖的细胞学效应 |
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| 引用本文： | 谢琳,牛应泽,罗谊. 航天诱变对甘蓝型油菜根尖的细胞学效应[J]. 核农学报, 2008, 22(2): 179-182 |
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| 作者姓名： | 谢琳 牛应泽 罗谊 |
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| 作者单位： | 四川农业大学油菜研究中心,四川,雅安,625014 |
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| 基金项目： | 教育部长江学者和创新团队发展计划，四川省教育厅农作物育种专项 |
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| 摘 要： | 对经卫星搭载的甘蓝型油菜不育系及保持系种子当代(SP1)根尖细胞进行了细胞学研究。结果表明,与未搭载对照相比,航天诱变对多数甘蓝型油菜种子根尖细胞的有丝分裂产生了促进效应,同时使根尖细胞产生了较高频率的染色体畸变和微核。分析表明,通过卫星搭载,甘蓝型油菜种子在细胞学水平上发生了真实的诱变效应。与不育系材料相比,航天搭载对保持系材料有着更强的诱变作用。
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| 关 键 词： | 甘蓝型油菜 航天诱变 有丝分裂指数 染色体畸变 微核 |
| 收稿时间： | 2009-12-31 |
| 修稿时间： | 2009-12-31 |
CYTOLOGICAL EFFECTS OF SPACE FLIGHT ON ROOT-TIP CELLS IN RAPESEED (Brassica napus L.) |
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| XIE Lin,NIU Ying-ze,LUO Yi. CYTOLOGICAL EFFECTS OF SPACE FLIGHT ON ROOT-TIP CELLS IN RAPESEED (Brassica napus L.)[J]. Acta Agriculturae Nucleatae Sinica, 2008, 22(2): 179-182 |
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| Authors: | XIE Lin NIU Ying-ze LUO Yi |
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| Abstract: | The seed of rapeseed(Brassica napus L.)was carried by satellite "Shijian 8".The cytological effects of space mutation on the root-tip cells was studied in SP_1 generation.The results showed that the mitotic index,rate of chromosome aberration and rate of micronuclei were obviously increased in most of treated materials compared with the control,which indicated that true cytological mutations were induced by space flight.The mutagenic effects were observed higher in the maintainer lines than in the male sterile lines. |
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| Keywords: | rapeseed space mutation mitotic index chromosome aberration micronuclei |
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