ZmDof3, a maize endosperm-specific Dof protein gene, regulates starch accumulation and aleurone development in maize endosperm
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- 作者：Xin Qi ; Shixue Li ; Yaxi Zhu ; Qian Zhao ; Dengyun Zhu ; Jingjuan Yu
- 关键词：Dof transcription factor ; ZmDof3 ; Starch ; Aleurone ; Endosperm development ; Zea mays
- 刊名：Plant Molecular Biology
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：93
- 期：1-2
- 页码：7-20
- 全文大小：
- 刊物类别：Biomedical and Life Sciences
- 刊物主题：Plant Sciences; Biochemistry, general; Plant Pathology;
- 出版者：Springer Netherlands
- ISSN：1573-5028
- 卷排序：93
文摘
Key messageTo explore the function of Dof transcription factors during kernel development in maize, we first identified Dof genes in the maize genome. We found that ZmDof3 was exclusively expressed in the endosperm of maize kernel and had the features of a Dof transcription factor. Suppression of ZmDof3 resulted in a defective kernel phenotype with reduced starch content and a partially patchy aleurone layer. The expression levels of starch synthesis-related genes and aleurone differentiation-associated genes were down-regulated in ZmDof3 knockdown kernels, indicating that ZmDof3 plays an important role in maize endosperm development.