| 玉米矮杆突变体52333^Dt降秆机制的初步研究 |
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| 引用本文： | 李启芳,王立静,商伟,董朝斌,金危危,刘保申. 玉米矮杆突变体52333^Dt降秆机制的初步研究[J]. 山东农业科学, 2010, 0(10): 24-26 |
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| 作者姓名： | 李启芳 王立静 商伟 董朝斌 金危危 刘保申 |
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| 作者单位： | 1. 山东农业大学农学院,山东,泰安,271018
2. 中国农业大学/国家玉米改良中心,北京,100094 |
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| 基金项目： | 国家自然科学基金项目“玉米矮秆基因的分离及遗传研究”(31071425); 山东省自然科学基金项目“新的玉米显性矮秆基因的遗传分析及精细定位”(ZR2009DM001); 山东省农业良种产业化项目[(2007良种字(04)]资助。 |
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| 摘 要： | 52333Dt是山东农业大学选育出的玉米矮秆突变材料,矮秆性状由一个新的显性单基因控制,暂定名为Dt。在前期研究的基础上,本文对52333Dt的降秆机制进行了初步研究,发现分离群体中矮秆植株比高秆植株平均多一个节间,节间为均匀缩短,平均株高只有高秆植株的49.57%。细胞学研究发现节间缩短是由于细胞伸长受到了抑制。
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| 关 键 词： | 玉米（Zea mays L） 矮秆 突变体 解剖 |
Preliminary Study on Dwarfing Mechanism of Maize Dwarf Mutant 52333Dt |
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| LI Qi-fang,WANG Li-jing,SHANG Wei,DONG Zhao-bin,JING Wei-wei,LIU Bao-shen. Preliminary Study on Dwarfing Mechanism of Maize Dwarf Mutant 52333Dt[J]. Shandong Agricultural Sciences, 2010, 0(10): 24-26 |
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| Authors: | LI Qi-fang WANG Li-jing SHANG Wei DONG Zhao-bin JING Wei-wei LIU Bao-shen |
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| Affiliation: | LI Qi - fang1,WANG Li- jing1,SHANG Wei1,DONG Zhao - bin2,JING Wei - wei2,LIU Bao - shen1*(1. College of Agronomy,Sh,ong Agricultural University,Taian 271018,China,2. National Maize Improvement Center of China/China Agricultural University,Beijing 100094,China) |
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| Abstract: | The maize dwarf mutant 52333 was bred by Shandong Agricultural University. The dwarf trait was controlled by a new single dominant gene, which was temporarily named Dt. Based on previous study, the preliminary research on the dwarfing mechanism was carried out. The results showed that in segregation population, the plant height of dwarf individuals was only 49. 57% of that of the high individuals, and the dwarf individuals had one intemode more than the high individuals on average; the internodes were short... |
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| Keywords: | Maize (Zea mays L.) Dwarf Mutant Anatomy |
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