期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 62, 期 5, 页码 1687-1697出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erq398
关键词
Auxin; cytokinin; gene expression; MAP kinase; meristem; patterning; root; shoot; signaling; zygote
资金
- NSF [IOS-0842284]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [0842284] Funding Source: National Science Foundation
Arabidopsis embryos follow a predictable sequence of cell divisions, facilitating a genetic analysis of their early development. Both asymmetric divisions and cell-to-cell communication are probably involved in generating specific gene expression domains along the main axis within the first few division cycles. The function of these domains is not always understood, but recent work suggests that they may serve as a basis for organizing polar auxin flux. Auxin acts as systemic signal throughout the life cycle and, in the embryo, has been demonstrated to direct formation of the main axis and root initiation at the globular stage. At about the same time, root versus shoot fates are imposed on the incipient meristems by the expression of antagonistic regulators at opposite poles of the embryo. Some of the key features of the embryonic patterning process have emerged over the past few years and may provide the elements of a coherent conceptual framework.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据