ZmGRAS11, transactivated by Opaque2, positively regulates kernel size in maize
ZmGRAS11, transactivated by Opaque2, positively regulates kernel size in maize
复制标题
ZmGRAS11 由 Opaque2 反式激活，可正向调节玉米籽粒大小。
DOI：
10.1111/jipb.13198
复制
发表时间：
2021-12-01
影响因子：
11.4
通讯作者：
Chen, Rumei
中科院分区：
文献类型：
--
作者：
Li, Ye;Ma, Shuai;Chen, Rumei
Although the genetic basis for endosperm development in maize (Zea mays) has been well studied, the mechanism for coordinating grain filling with increasing kernel size remains elusive. Here, we report that increased kernel size was selected during modern breeding and identify a novel DELLA-like transcriptional regulator, ZmGRAS11, that positively regulates kernel size and kernel weight in maize. We find that Opaque2, a core transcription factor for zein protein and starch accumulation, transactivates the expression of ZmGRAS11. Our data suggest that the Opaque2-ZmGRAS11 module mediates synergistic endosperm enlargement with grain filling. This article is protected by copyright. All rights reserved.
