苦瓜花粉母细胞减数分裂行为研究

陈龙正; 张慧; 张永吉; 徐海; 宋波; 袁希汉

苦瓜花粉母细胞减数分裂行为研究

1.
江苏省农业科学院蔬菜研究所,江苏南京 210014;
2.
南京农业大学园艺学院,江苏南京 210095

基金项目:

江苏省农业科技自主创新基金

详细信息

通讯作者:
袁希汉(1958-),男,研究员,主要从事蔬菜遗传育种研究

中图分类号: S 642.5
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- 被引次数: 0
出版历程
- 收稿日期: 2011-05-14
- 修回日期: 2011-10-31
- 刊出日期: 2012-01-30

Studies on Meiotic Behavior of Pollen Mother Cells of bitter gourd (Momordica charantia L.)

1.
Vegetable Research Institute, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China;
2.
College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095,China

摘要

摘要: 研究苦瓜花粉母细胞的减数分裂行为,发现苦瓜花粉母细胞减数分裂中细胞质分裂类型为同时型,并且在减数分裂过程中存在不同步现象。在苦瓜花粉母细胞细胞核分裂中,从前期I到中期I,核仁逐渐消失,到前期Ⅱ又重新出现,随后消失。同时,从前期I到中期I,染色体开始收缩并逐渐变得清晰,到末期I时,苦瓜染色体发生解螺旋并逐渐模糊,前期Ⅱ再次变得清晰。研究还发现,苦瓜花粉母细胞减数分裂前期I和前期II中,存在多核仁现象。苦瓜减数分裂过程中产生部分多分孢子,这可能与逆境及染色体不同步分离相关。
- 苦瓜 /
- 减数分裂 /
- 染色体 /
- 特殊行为
Abstract: Meiotic behaviors of pollen mother cells (PMCs) of bitter gourd (Momordica charantia L.) were characterized. It was found that the pollen mother cell of bitter gourd revealed a simultaneous cytokinesis with unsynchronized phenomenon in meiotic division. Nucleolus disappeared gradually from prophase I to metaphase I, reappeared at prophaseⅡand then disappeared. Chromosome became more and more identifiable from prophase I to metaphase I, and illegible at telophase I with unwinding. Moreover, multi nucleoli was investigated in prophase I and prophase Ⅱ. Frequent polyads were observed in this study, which was likely related to the weather adversity and unsynchronized phenomenon in meiotic division.
- Bitter gourd /
- Meiosis /
- Chromosome /
- Special behaviors

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参考文献(7)

[1]	王先远, 金宏, 许志勤, 等. 苦瓜皂甙降血糖作用及其机制初探[J]. 氨基酸和生物资源, 2001,23(3): 42-45.
[2]	GAIKWAD A B, BEHERA T K, SINGH A K .Amplified fragment length polymorphism analysis provides strategies for improvement of bitter gourd (Momordica charantia L.) [J]. HortScience, 2008, 43(1):127-133.
[3]	康建坂, 朱海生, 李大忠, 等. 应用ISSR技术分析苦瓜种质资源的多态性[J]. 福建农业学报, 2010, 25(5)597-601.
[4]	何毅, 洪日新, 李文信, 等. 冬春苦瓜嫁接栽培技术[J]. 农业研究与应用, 2011,(2):60-61.
[5]	王洪刚, 张建民, 刘树兵, 等. 现代植物品种改良的途径、特点及发展趋势[J]. 山东农业大学学报, 1999,30(4):471-480.
[6]	钱春桃, 陈劲枫, 娄群峰, 等. 黄瓜花粉母细胞减数分裂行为的研究[J]. 武汉植物学研究, 2003,21(3): 193-197.
[7]	曹清河, 陈劲枫, 钱春桃, 等. 黄瓜花粉母细胞减数分裂及其雄配子体发育的细胞学研究[J]. 西北植物学报, 2004,24(9):1721-1726.