| 航天诱变凤仙花院3突变株后代小孢子变化的研究 |
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| 引用本文： | 汤泽生,陈德灿,杨军,陈蜀,王娟,刘平.航天诱变凤仙花院3突变株后代小孢子变化的研究[J].西华师范大学学报(哲学社会科学版),2005,26(4):358-363. |
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| 作者姓名： | 汤泽生 陈德灿 杨军 陈蜀 王娟 刘平 |
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| 作者单位： | [1]西华师范大学生命科学学院,四川南充637002 [2]西华师范大学珍稀动植物研究所,四川南充637002 [3]四川南充航天农业有限公司,四川南充637000 |
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| 基金项目： | 四川省科技厅应用基础研究基金资助项目（JY029-055-2）;四川省重点学科建设项目（SZD0420） 致谢：本研究得到彭正松、王祖秀、赵家贵、赵燕、袁海云、潘庆泉等同仁的支持与帮助,特此致谢. |
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| 摘 要： | 凤仙花种子经神舟4号飞船搭载后发现的院，突变株，从SP1代到SP3代小孢子的染色体数目和小孢子的大小进行了追踪研究，发现该突变株SP1代小孢子中的染色体数目变化大，从仅含1条染色体，到最多含28条染色体，小孢子之间的大小差异也大；SP2代小孢子中的染色体数目变化范围缩小，仅在4—9条之间；小孢子大小之间的差距也变小．在秋播条件下SP3代的变化趋势与SP2代基本一致，并对院，突变株后代小孢子内染色体数目及小孢子大小的变化趋势，原因进行了讨论．
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| 关 键 词： | 凤仙花 航天诱变 小孢子 染色体数目 小孢子大小 |
| 文章编号： | 1001-8220（2005）04-0358-06 |
| 收稿时间： | 2005-09-10 |
| 修稿时间： | 2005年9月10日 |
Variation of Microspores in the Descendants of Impatiens baisamina Mutant Plant Yuan 3 Induced by Space Flight |
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| TANG Ze-sheng, CHEN De-than, YANG Jun, CHEN Shu, WANG Juan, LIU Ping.Variation of Microspores in the Descendants of Impatiens baisamina Mutant Plant Yuan 3 Induced by Space Flight[J].Journal of China West Normal University:Natural Science Edition,2005,26(4):358-363. |
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| Authors: | TANG Ze-sheng CHEN De-than YANG Jun CHEN Shu WANG Juan LIU Ping |
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| Institution: | 1. School of Life Sciences, China West Normal University, Nanchong 637002 ,China; 2. Institute of Rare and Preciaus Animals and Plants, China West Normal University, Nanchong 637002 ,China; 3. Nanchong Aerospace Agriculture Breeding Company Ltd. ,Nanchong 637000 ,China |
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| Abstract: | A mutant plant Yuan 3 was screened in the Impatiens balsamin , a plants grown from the seeds treated by space flight, and the chromosome numbers and size of microspores in the descendant plants from SPt To SP3 generation were tracked. It was found that the chromosome numbers fluctuated greatly in SP ~ microspores, from 1 to 28, and the size of microspores changed in great deal correspondingly. In the SP2 generation, the chromosome number shrunk to 4 - 9, and variation degree of the microspore size decreased. The SP3 plants grown in autumn showed the same variation degree as SP2 in general. The reason of the variation in the treated descendant plants was discussed in this paper. |
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| Keywords: | Impatiens balsamina space flight microspore chromosome numbers size of microspore |
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