VASCULAR PLANT ONE-ZINC FINGER1 and VOZ2 repress the FLOWERING LOCUS C clade members to control flowering time in Arabidopsis
VASCULAR PLANT ONE-ZINC FINGER1 and VOZ2 repress the FLOWERING LOCUS C clade members to control flowering time in Arabidopsis
复制标题
维管束植物 ONE-ZINC FINGER1 和 VOZ2 抑制开花基因座 C 分支成员以控制拟南芥的开花时间
DOI：
10.1080/09168451.2014.932670
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
T.
中科院分区：
文献类型：
--
作者：
Yasui;Y. and Kohchi;T.
花的转变受环境和内源信号的调节。在此之前，我们已经鉴定出维管植物1 -锌指1（VOZ1）和voz2是光敏色素b的相互作用因子。voz1和voz2冗余促进开花，并在下调FLC（降低位点C）中起关键作用，FLC是拟南芥开花的中心抑制因子。本研究发现，在哥伦比亚和frigida （FRI）中，voz1 voz2突变体的晚花表型受到春化的抑制，这表明voz1 voz2突变体的晚花表型是由ofFLC上调引起的。我们还发现，其他flcade成员，MADS影响开花（MAF）基因，也是voz1和voz2的下游靶点，因为它们在voz2突变体voz1中的表达水平也增加了。我们的研究结果表明flcade基因整合了来自voz1 / voz2和春化的信号来调节开花。
Floral transition is regulated by environmental and endogenous signals. Previously, we identifiedVASCULAR PLANT ONE-ZINC FINGER1(VOZ1) andVOZ2as phytochrome B-interacting factors.VOZ1andVOZ2redundantly promote flowering and have pivotal roles in the downregulation ofFLOWERING LOCUS C(FLC), a central repressor of flowering in Arabidopsis. Here, we showed that the late-flowering phenotypes of thevoz1 voz2mutant were suppressed by vernalization in the Columbia andFRIGIDA(FRI)-containing accessions, which indicates that the late-flowering phenotype ofvoz1 voz2mutants was caused by upregulation ofFLC. We also showed that the otherFLCclade members,MADS AFFECTING FLOWERING(MAF) genes, were also a downstream target ofVOZ1andVOZ2as their expression levels were also increased in thevoz1 voz2mutant. Our results suggest that theFLCclade genes integrate signals fromVOZ1/VOZ2and vernalization to regulate flowering.