The indeterminate gene encodes a zinc finger protein and regulates a leaf-generated signal required for the transition to flowering in maize
The indeterminate gene encodes a zinc finger protein and regulates a leaf-generated signal required for the transition to flowering in maize
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DOI：
10.1016/s0092-8674(00)81188-5
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发表时间：
1998-05-15
期刊：
影响因子：
64.5
通讯作者：
Sundaresan, V
中科院分区：
文献类型：
--
作者：
Colasanti, J;Yuan, Z;Sundaresan, V
植物开花是茎尖响应环境和内部信号从营养生长向生殖生长转变的结果。不确定1基因（id1）控制玉米开花的转变。我们通过克隆id1基因，发现它编码一个具有锌指基序的蛋白质，这表明id1基因产物作为花转变的转录调节因子发挥作用，转座子诱导的嵌合体植物的id1 mRNA表达研究和分析表明，id1作用于非细胞，自主地调节叶中可传递信号的产生，该信号促进茎尖向生殖的转化发展这些结果提供了分子和遗传数据与成花素假说来自经典植物生理学研究。
Flowering in plants is a consequence of the transition of the shoot apex from vegetative to reproductive growth in response to environmental and internal signals. The indeterminate 1 gene (id1) controls the transition to flowering in maize. We show by cloning the id1 gene that it encodes a protein with zinc finger motifs, suggesting that the id1 gene product functions as a transcriptional regulator of the floral transition, id1 mRNA expression studies and analyses of transposon-induced chimeric plants indicate that id1 acts non-cell-autonomously to regulate the production of a transmissible signal in the leaf that elicits the transformation of the shoot apex to reproductive development. These results provide molecular and genetic data consistent with the florigen hypothesis derived from classical plant physiology studies.