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首页> 美国卫生研究院文献>Plant Biotechnology >AGL18-1 delays flowering time through affecting expression of flowering-related genes in Brassica juncea
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AGL18-1 delays flowering time through affecting expression of flowering-related genes in Brassica juncea

机译：AGL18-1通过影响芥菜中开花相关基因的表达来延迟开花时间

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摘要

is an important vegetable and condiment crop widely grown in Asia, and the yield and quality of its product organs are affected by flowering time. AGAMOUS-LIKE18-1 (AGL18-1) belongs to a member of MADS-domain transcription factors, which play vital roles in flowering time control, but the biological role of in ( ) has not been thoroughly revealed in flowering regulatory network. In this study, expressed highly in inflorescence and flower, but slightly in root, stem and leaf. The sense and anti-sense transgenic lines of were generated and showed that functioned as a flowering inhibitor and depressed growth of lateral branching. During the vegetative phase, induced another flowering repressor ( ) but inhibited the flowering signal integrator of ( ) in . Whereas, during the flower developmental phase, both and ( ) were down-regulated by . By contrast, was promoted by , while ( ) was independent of . Additionally, ( ) was highly induced by . These results will provide valuable information for clarifying the molecular mechanism of in mediating flowering time.
机译：是亚洲广泛种植的重要蔬菜和调味品作物，其产品器官的产量和质量受开花时间的影响。 AGAMOUS-LIKE18-1（AGL18-1）属于MADS结构域转录因子的成员，在开花时间控制中起着至关重要的作用，但是（）中的生物学作用尚未在开花调控网络中彻底揭示。在这项研究中，在花序和花中高表达，但在根，茎和叶中低表达。产生了有义和反义转基因品系，并显示出其作为开花抑制剂并抑制了侧枝的生长。在营养阶段，诱导了另一种开花抑制因子（），但抑制了（）的开花信号整合子。而在花的发育阶段，和（）均被下调。相比之下，则由提升，而（）与无关。此外，（）是由引起的。这些结果将为阐明介导开花时间的分子机制提供有价值的信息。

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