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通过调控. 的表达诱导水稻开花。

Induces Flowering in Rice by Modulating Expression of .

机构信息

Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Korea.

出版信息

Mol Cells. 2018 Jul 31;41(7):665-675. doi: 10.14348/molcells.2018.0148. Epub 2018 Jul 10.

DOI:10.14348/molcells.2018.0148
PMID:29991671
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6078857/
Abstract

Rice is a facultative short-day (SD) plant in which flowering is induced under SD conditions or by other environmental factors and internal genetic programs. Overexpression of () accelerates flowering in hybrid rice. In this study, mutants defective in flowered late under both SD and long-day conditions. Expression levels of florigens () and (), and their immediate upstream floral activator (), were significantly decreased in the mutants, indicating that functions upstream of in controlling flowering time. Transcript levels of (), an upstream repressor of , were significantly increased in the mutants while those of and were reduced. Chromatin-immunoprecipitation assays revealed that HDT701 directly binds to the promoter region of . These results suggest that HDT701 induces flowering by suppressing

摘要

水稻是一种兼性短日（SD）植物，在 SD 条件下或其他环境因素和内部遗传程序的作用下诱导开花。（）的过表达加速了杂交水稻的开花。在这项研究中，（）突变体在 SD 和长日条件下开花较晚。在 突变体中，成花素（）和（）及其直接上游花激活剂（）的表达水平显著降低，表明 在上游起作用控制开花时间。（）的转录水平，（）的上游抑制剂，在突变体中显著增加，而 和 的转录水平降低。染色质免疫沉淀试验表明，HDT701 直接结合到 的启动子区域。这些结果表明，HDT701 通过抑制来诱导开花

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/2532f106f2d3/molce-41-7-665f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/e8c9710da96c/molce-41-7-665f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/1e59bd575f70/molce-41-7-665f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/18da9efda0ae/molce-41-7-665f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/d32fd5b31133/molce-41-7-665f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/d69a05a20de3/molce-41-7-665f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/c1b45d7923a1/molce-41-7-665f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/2532f106f2d3/molce-41-7-665f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/e8c9710da96c/molce-41-7-665f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/1e59bd575f70/molce-41-7-665f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/18da9efda0ae/molce-41-7-665f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/d32fd5b31133/molce-41-7-665f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/d69a05a20de3/molce-41-7-665f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/c1b45d7923a1/molce-41-7-665f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f58e/6078857/2532f106f2d3/molce-41-7-665f7.jpg

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