Plant Mol Biol (2017) 93:7–20 DOI 10.1007/s11103-016-0543-y ZmDof3 , a maize endosperm-specific Dof protein gene, regulates ch accumulation and aleur star one development in maize endosperm 1 1 1 1 1 1 Xin Qi · Shixue Li · axiY Zhu · Qian Zhao · Dengyun Zhu · Jingjuan Yu Received: 4 May 2016 / Accepted: 9 September 2016 / Published online: 5 October 2016 © Springer Science +Business Media Dordrecht 2016 Abstract The maize endosperm, occupying a large propor - Key message To explore the function of Dof transcrip- tion of the kernel, plays an important role in seed develop - tion factors during kernel development in maize, we first ment and germination. Current knowledge regarding the reg - identified Dof genes in the maize genome. We found that ulation of endosperm development is limited. Dof proteins, ZmDof3 was exclusively expressed in the endosperm of a family of plant-specific transcription factors, play critical maize kernel and had the features of a Dof transcrip- roles in diverse biological processes. In this study, an endo - tion factor. Suppression of ZmDof3 resulted in a defec- sperm-specific Dof protein gene, , was identified tive kernel phenotype with reduced starch content and in
Plant Molecular Biology – Springer Journals
Published: Oct 5, 2016
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