| 胚珠发育的分子基础 |
| |
| 引用本文： | 张宪省,马小杰,郭海新.胚珠发育的分子基础[J].植物学报,1998,15(3):1-5. |
| |
| 作者姓名： | 张宪省 马小杰 郭海新 |
| |
| 作者单位： | (山东农业大学基础部 泰安 271018） |
| |
| 摘 要： | 胚珠作为胚囊的携带者，在植物的生殖过程中起重要作用。胚珠是种子的前身，它在受精后发育成种子。近年来通过诱变已创造出一些胚珠和胚囊发育异常的突变体，如 sin1, bell, ovm2, ovm3。这几个突变体的表现型不但是珠被发育异常，而且胚囊不能形成或发育异常，最终结果是雌性不育。同时，已分别从蝶兰和矮牵牛的胚珠中分离出一批胚珠发育特异的基因，其中有关MADS Box基因在胚珠形成和发育中的作用研究得比较清楚，基因转化工作证实胚珠的分化和形成受一类新的MADS Box基因控制。
|
| 关 键 词： | 胚珠 突变体 基因表达 |
Molecular Bases of Ovule Development |
| |
| ZHANG Xian-Sheng,MA Xiao-Jie and GUO Hai-Xin.Molecular Bases of Ovule Development[J].Bulletin of Botany,1998,15(3):1-5. |
| |
| Authors: | ZHANG Xian-Sheng MA Xiao-Jie and GUO Hai-Xin |
| |
| Affiliation: | (Department of Basic Courses, Shandong Agricultural University, Taian 271018) |
| |
| Abstract: | The ovule is the source of the embryo sac and the progenitor of the seed, which plays an important role on plant reproduction. A few mutants had been identified in recent years, such as
sin l, bell, ovm2, ovm3,whose phenotypes show that both integuments and embryo sac develop abnormally,and these mutants are female-sterile. At the same time, some ovule-specific cDNA clones in Orchid and Petunia flowers had been isolated and among them MADS Box genes may be responsible for the ovule differentiation and formation. |
| |
| Keywords: | , |
|
| 点击此处可从《植物学报》浏览原始摘要信息 |
|
点击此处可从《植物学报》下载全文 |
|
