| 植物茎端分生组织CLV/WUS信号途径的研究进展 |
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| 引用本文： | 王希挺,程治军,万建民.植物茎端分生组织CLV/WUS信号途径的研究进展[J].中国农业科技导报,2008,10(5):1-7. |
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| 作者姓名： | 王希挺 程治军 万建民 |
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| 作者单位： | 中国农业科学院作物科学研究所,北京100081 |
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| 基金项目： | 国家自然科学基金
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| 摘 要： | 高等植物的最终形态主要依赖于茎端分生组织的发育调控,拟南芥CLV/WUS途径是茎端分生组织最重要的调控机制之一。CLV途径促进器官发生,WUS途径诱导分生组织细胞增殖,它们构成了负反馈调节环,保证了拟南芥分生组织的正常增殖与分化。利用突变体基因克隆和系统发育比较,证实了CLV和WUS的同源基因也存在于以水稻和玉米为代表的禾本科作物中,说明CLV/WUS信号途径在禾本科作物中很可能是保守的。由于禾本科作物茎端分生组织的发育最终关系到作物的产量和品质,因此,深入研究禾本科作物的CLV/WUS信号途径将有助于禾本科作物的遗传改良。
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| 关 键 词： | 分生组织 基因 CLV WUS 禾本科作物 |
| 收稿时间： | 2008-06-04 |
| 修稿时间： | 2008-09-01 |
Research Progress on CLV/WUS Signal Pathway |in Plant Shoot Apical Meristem |
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| WANG Xi-ting,CHENG Zhi-jun,WAN Jian-min.Research Progress on CLV/WUS Signal Pathway |in Plant Shoot Apical Meristem[J].Journal of Agricultural Science and Technology,2008,10(5):1-7. |
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| Authors: | WANG Xi-ting CHENG Zhi-jun WAN Jian-min |
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| Institution: | Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | Plant architecture is mainly determined by the developmental regulation of shoot apical meristem （SAM）. In Arabidopsis, the CLV/WUS pathway is one of the most important regulatory mechanisms of shoot apical meristem. The CLV pathway promotes organogenesis, while the WUS pathway induces meristem cell proliferation. CLV/WUS pathway is a feedback loop, which would maintain the balance between proliferation and differentiation. Homologous CLV and WUS were confirmed to be existed in rice and corn, which are representatives of cereal crops. On the basis of mutant gene cloning and phylogenetic comparison, it was proofed that CLV/WUS pathway was potentially conserved in cereal crops. Since the development of shoot apical meristem is correlated with yield and quality of cereal crops, further study on CLV/WUS signal pathway in cereal crops will contribute a lot to genetic improvement of cereal crops. |
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| Keywords: | CLV WUS |
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