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麝香百合小孢子母细胞减数分裂进程与花蕾大小相关性研究

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2008年06期
Page:
43-46
Column:
研究论文
publishdate:
2008-11-30

Article Info:/Info

Title:
Relations between length of flower buds and the meiosis processes of pollen mother cells of Lilium longiflorum
Article ID:
1000-2006(2008)06-0043-04
Author(s):
XI Meng-li ZHANG Jing QIU Shuai LIU Guang-xin HU Feng-rong SHI Jisen*
Nanjing Forestry University Key Laboratory of Forest Genetics & Biotechnology Ministry of Education, Nanjing 210037, China
Keywords:
Lilium longiflorum Meiosis 2n pollen
Classification number :
S722
DOI:
10.3969/j.jssn.1000-2006.2008.06.010
Document Code:
A
Abstract:
Polyploid breeding was an important breeding method of lily. Induction 2n gamete was an idea way to get triploid lily. In order to know when induce 2n pollen could be induced, the relations between flower buds length and pollen mother cells developmental stages were studied. In this way, a foundation for creating triploid lily could be set up. Using flower buds of Lilium longiflorum ’Leishan’ as materials, the meiosis processes of pollen mother cells were observed. The results indicated that there were some relations between flower buds length and pollen mother cells developmental stages. The pollen mother cells was at the vigorous development stage when the flower bud had 1.0--2.5 cm in length. Pollen mother cells from the same anther were almost synchronization. Chromosomes of pollen mother cells duplicated once and then divided twice. One pollen mother cells would generate four pollens. Because there was no cell plate forming in the telophase I, it belonged to successive cytokinesis. The best time for 2n pollen induction was that the length of flower buds was 1.5--2.0 cm.

References

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Last Update: 2013-05-20