...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Scientific reports. >Arabidopsis HUA ENHANCER 4 delays flowering by upregulating the MADS-box repressor genes FLC and MAF4
【24h】

Arabidopsis HUA ENHANCER 4 delays flowering by upregulating the MADS-box repressor genes FLC and MAF4

机译：拟南芥HUA ENHANCER 4通过上调MADS-box阻遏基因FLC和MAF4延迟开花

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The adaptive success of flowering plants is largely due to their ability to align floral production with optimal conditions. In Arabidopsis thaliana, MADS-box repressors of the FLC/MAF-clade prevent flowering under non-inductive conditions, although the role of some members is not yet clearly defined. Using a genetic strategy, we identified the KH-domain gene HEN4, previously shown to be?involved in MADS-box floral homeotic gene regulation, as a modulator of flowering time. Loss-of-function hen4 mutants are early-flowering, and their response to low growth-temperature (16?°C) and day-length is altered. Interestingly, hen4 plants showed dramatic reduction of FLC and MAF4 transcripts, whereas other flowering repressors of the same clade (FLM, MAF2, MAF3, MAF5) remained unaltered. We also determined that hen4, partly due to loss of FLC, accelerates the vegetative phase-change. This report provides insight into flowering time control and highlights the potential of versatile regulators such as HEN4 to coordinate the juvenile-to-adult transition and floral timing.
机译：开花植物的适应性成功很大程度上归因于其使花卉生产与最佳条件保持一致的能力。在拟南芥中，尽管未明确定义某些成员的作用，但FLC / MAF进化枝的MADS盒阻遏物可防止在非诱导条件下开花。使用遗传策略，我们确定KH域基因HEN4，以前被证明参与MADS框花同源基因调控，作为开花时间的调节剂。失去功能的hen4突变体早开花，它们对低生长温度（16？C）和日长的反应发生了改变。有趣的是，hen4植物显示FLC和MAF4转录物显着减少，而同一进化枝的其他开花阻遏物（FLM，MAF2，MAF3，MAF5）保持不变。我们还确定hen4（部分由于FLC丢失）加速了植物的相变。该报告提供了对开花时间控制的见解，并强调了诸如HEN4之类的多功能调节剂在协调幼年至成年过渡和花期之间的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号