Overexpression of OsDof12 affects plant architecture in rice (Oryza sativa L.).

作者: Qi Wu , Dayong Li , Dejun Li , Xue Liu , Xianfeng Zhao

DOI: 10.3389/FPLS.2015.00833

关键词:

摘要: Dof (DNA binding with one finger) proteins, a class of plant-specific transcription factors, are involved in plant growth and developmental processes stress responses. However, their biological functions remain to be elucidated, especially rice (Oryza sativa L.). Previously, we have reported that OsDof12 can promote flowering under long-day conditions. Here, further investigated the other important agronomical traits transgenic plants overexpressing found could lead reduced height, erected leaf, shortened leaf blade, smaller panicle resulted from decreased primary secondary branches number. These results implied is architecture formation. Furthermore, performed series Brassinosteroid (BR)-responsive tests overexpression also result BR hyposensitivity. Of note, WT expression was up-regulated by treatment while two positive signaling regulators, OsBRI1 OsBZR1, were significantly down-regulated, indicating may act as negative regulator rice. Taken together, our suggested altered suppressing signaling. Thus, might used new potential genetic for future molecular breeding.

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