ZmGRAS11, transactivated by Opaque2, positively regulates kernel size in maize,Journal of Integrative Plant Biology

当前位置： X-MOL 学术 › J. Integr. Plant Biol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

ZmGRAS11, transactivated by Opaque2, positively regulates kernel size in maize
Journal of Integrative Plant Biology ( IF 9.3 ) Pub Date : 2021-11-30 , DOI: 10.1111/jipb.13198
Ye Li _{1,

2} , Shuai Ma ₁ , Qianqian Zhao ₁ , Di Lv ₁ , Baobao Wang ₁ , Ke Xiao _{1,

3} , Jiameng Zhu _{1,

4} , Suzhen Li ₁ , Wenzhu Yang ₁ , Xiaoqing Liu ₁ , Haiyang Wang ₅ , Xiaojin Zhou ₁ , Rumei Chen ₁

Affiliation

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, which 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.

中文翻译：

由 Opaque2 反式激活的 ZmGRAS11 正向调节玉米的籽粒大小

尽管已经对玉米 ( Zea mays )胚乳发育的遗传基础进行了很好的研究，但协调籽粒灌浆与籽粒大小增加的机制仍然难以捉摸。在这里，我们报告在现代育种过程中选择了增加的籽粒大小，并确定了一种新的 DELLA 样转录调节因子 ZmGRAS11，它正向调节玉米的籽粒大小和籽粒重量。我们发现，玉米醇溶蛋白和淀粉积累的核心转录因子 Opaque2 反式激活ZmGRAS11的表达。我们的数据表明，Opaque2-ZmGRAS11 模块通过籽粒灌浆介导协同胚乳扩大。

更新日期：2021-12-28

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南