| 卫星搭载凤仙花诱发的院3突变株后代小孢子的染色体数目变化研究 |
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| 引用本文： | 汤泽生,高亮,杨军,李劲涛,张秀丽.卫星搭载凤仙花诱发的院3突变株后代小孢子的染色体数目变化研究[J].科技导报(北京),2007,25(19):43-47. |
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| 作者姓名： | 汤泽生 高亮 杨军 李劲涛 张秀丽 |
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| 作者单位： | 西华师范大学生命科学学院 四川南充637002 |
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| 基金项目： | 四川省重点学科建设项目(SZD0420)，四川省科技厅应用基础项目(2005-029-2) |
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| 摘 要： | 凤仙花种子经"神舟"4号卫星搭载后,在SP1代中发现一个减数分裂异常和小孢子内染色体数目非减半突变株,本文对其后代的花色变化和染色体数目变化进行了研究。发现粉红花和红花突变系小孢子染色体在7条左右,而蓝紫色突变系则平均在10以上,二者有较大差异。在花粉粒大小方面则有相似的结果。
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| 关 键 词： | 凤仙花 卫星搭载 突变系 小孢子 染色体数目 |
| 文章编号： | 1000-7857（2007）19-0043-05 |
| 修稿时间： | 2007-08-24 |
Mutation of Chromosome Number in Microspores of Descendent Plants from Impatiens balsamina Mutant Plant Yuan 3 Induced by Spaceflight |
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| TANG Zesheng,GAO Liang,YANG Jun,LI Jintao,ZHANG Xiuli.Mutation of Chromosome Number in Microspores of Descendent Plants from Impatiens balsamina Mutant Plant Yuan 3 Induced by Spaceflight[J].Science & Technology Review,2007,25(19):43-47. |
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| Authors: | TANG Zesheng GAO Liang YANG Jun LI Jintao ZHANG Xiuli |
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| Institution: | College of Life Sciences, China West Normal University, Nanchong 637002, Sichuan Province, China |
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| Abstract: | In the seeds of Impatiens balsamina after spaceflight, a mutant plant with abnormal meiotic behavior was discovered and mutations of its descendent plants were investigated. It was found that microspores in two mutant lines with different pink or red flowers had normal chromosome number of 7, while, the average number of chromosome in microspores from the mutant line with purple flower was over 10. The results about the size of their pollens show similar trends. |
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| Keywords: | Impatiens balsamina space flight mutant line microspore chromosome numbers |
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