ZmGRAS46 and Its Role in Maize Flowering
Author Information
Author(s): Xiaotong Wei, Honglin Zhang, Zhenzhong Jiang, Peng Jiao, Siyan Liu, Shuyan Guan, Yiyong Ma
Primary Institution: Jilin Agricultural University
Hypothesis
ZmGRAS46 negatively regulates flowering time in maize.
Conclusion
Overexpression of ZmGRAS46 delays flowering in maize, while gene editing of ZmGRAS46 leads to earlier flowering.
Supporting Evidence
- Overexpression of ZmGRAS46 delayed flowering time in maize.
- Gene editing of ZmGRAS46 resulted in earlier flowering.
- ZmGRAS46 overexpression increased maize 100-grain weight.
- ZmGRAS46 expression was highest in maize stems.
- GA treatment reduced ZmGRAS46 expression.
Takeaway
This study found that a gene called ZmGRAS46 can make maize flowers bloom later or earlier depending on whether it's turned on or off.
Methodology
The study involved transcriptomic sequencing, genetic transformation using Agrobacterium, and qRT-PCR analysis of flowering-related genes.
Limitations
The functional verification of positive maize plants is not comprehensive enough, and the upstream and downstream regulatory mechanisms of ZmGRAS46 need further exploration.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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