文献类型： 外文期刊
作者： Cao, Yingying 1 ; Dou, Dandan 2 ; Zhang, Dongling 2 ; Zheng, Yaogang 2 ; Ren, Zhenzhen 2 ; Su, Huihui 2 ; Sun, Chongyu 2 ; Hu, Xiaomeng 2 ; Bao, Miaomiao 2 ; Zhu, Bingqi 2 ; Liu, Tianxue 2 ; Chen, Yanhui 2 ; Ku, Lixia 2 ;
作者机构： 1.South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangzhou, Peoples R China
2.Henan Agr Univ, Coll Agron, Natl Key Lab Wheat & Maize Crop Sci, Minist Educ, 15 Longzihu Univ Pk, Zhengzhou 450046, Henan, Peoples R China
3.Henan Agr Univ, Key Lab Regulating & Controlling Crop Growth & Dev, Minist Educ, 15 Longzihu Univ Pk, Zhengzhou 450046, Henan, Peoples R China
4.Henan Acad Agr Sci, Zhengzhou 450002, Henan, Peoples R China
关键词： Maize; Leaf angle; ZmDWF1; Regulatory network
期刊名称：PLANT SCIENCE （ 影响因子：5.363； 五年影响因子：5.454 ）
ISSN： 0168-9452
年卷期： 2022 年 325 卷
页码：
收录情况： SCI
摘要： Leaf angle (LA) is a critical agronomic trait enhancing grain yield under high-density planting in maize. A number of researches have been conducted in recent years to investigate the quantitative trait loci/genes responsible for LA variation, while only a few genes were identified through map-based cloning. Here we cloned the ZmDWF1 gene, which was previously reported to encode & UDelta;24-sterol reductase in the brassinosteroids (BRs) biosynthesis pathway. Overexpression of ZmDWF1 resulted in enlarged LA, indicating that ZmDWF1 is a positive regulator of LA in maize. To reveal the regulatory framework of ZmDWF1, we conducted RNA-Sequencing and yeast-two hybrid (Y2H) screening analysis. RNA-Sequencing analyzing results indicate ZmDWF1 mainly affected expression level of genes involved in cell wall associated metabolism and hormone metabolism including BR, gibberellin, and auxin. Y2H screening with Bi-FC assay confirmed three proteins (ZmPP2C-1, ZmROF1, and ZmTWD1) interacting with ZmDWF1. We revealed a new regulatory network of ZmDWF1 gene in controlling plant architecture in maize.
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