Dual functions of ZmNF-YA3 in photoperiod-dependent flowering and abiotic stress responses in maize

Nuclear factor-Y (NF-Y) transcription factors are important regulators of several essential biological processes, including embryogenesis, drought resistance, meristem maintenance, and photoperiod-dependent flowering in Arabidopsis. However, the regulatory mechanisms of NF-Ys in maize (Zea mays) are...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 69(2018), 21 vom: 12. Okt., Seite 5177-5189
1. Verfasser: Su, Huihui (VerfasserIn)
Weitere Verfasser: Cao, Yingying, Ku, Lixia, Yao, Wen, Cao, Yanyong, Ren, Zhenzhen, Dou, Dandan, Wang, Huitao, Ren, Zhaobin, Liu, Huafeng, Tian, Lei, Zheng, Yaogang, Chen, Chen, Chen, Yanhui
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't CCAAT-Binding Factor Plant Proteins nuclear factor Y
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520 |a Nuclear factor-Y (NF-Y) transcription factors are important regulators of several essential biological processes, including embryogenesis, drought resistance, meristem maintenance, and photoperiod-dependent flowering in Arabidopsis. However, the regulatory mechanisms of NF-Ys in maize (Zea mays) are not well understood yet. In this study, we identified an NF-Y transcription factor, ZmNF-YA3. Genome-wide analysis showed that ZmNF-YA3 bound to >6000 sites in the maize genome, 2259 of which are associated with genic sequences. ZmNF-YA3 was found to interact with CONSTANS-like (CO-like) and flowering promoting factor1 (FPF1) through yeast two-hybrid and bimolecular fluorescence complementation (BiFC) assays. Quantitative real-time reverse transcription-PCR (qRT-PCR) combined with yeast one-hybrid assay and EMSA suggested that NF-YA3 could promote early flowering by binding to the FLOWERING LOCUS T-like12 (FT-like12) promoter in maize. Morerover, we also showed that ZmNF-YA3 could improve drought and high-temperature tolerance through binding to the promoter regions of bHLH92, FAMA, and the jasmonic acid activator MYC4, respectively. These results contribute to a comprehensive understanding of the molecular mechanisms and regulatory networks of NF-Y transcription factors in regulating maize flowering time and stress response in maize 
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700 1 |a Cao, Yingying  |e verfasserin  |4 aut 
700 1 |a Ku, Lixia  |e verfasserin  |4 aut 
700 1 |a Yao, Wen  |e verfasserin  |4 aut 
700 1 |a Cao, Yanyong  |e verfasserin  |4 aut 
700 1 |a Ren, Zhenzhen  |e verfasserin  |4 aut 
700 1 |a Dou, Dandan  |e verfasserin  |4 aut 
700 1 |a Wang, Huitao  |e verfasserin  |4 aut 
700 1 |a Ren, Zhaobin  |e verfasserin  |4 aut 
700 1 |a Liu, Huafeng  |e verfasserin  |4 aut 
700 1 |a Tian, Lei  |e verfasserin  |4 aut 
700 1 |a Zheng, Yaogang  |e verfasserin  |4 aut 
700 1 |a Chen, Chen  |e verfasserin  |4 aut 
700 1 |a Chen, Yanhui  |e verfasserin  |4 aut 
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