文献类型： 外文期刊
作者： Ma, Yamei 1 ; Dong, Jingfang 1 ; Yang, Wu 1 ; Chen, Luo 1 ; Wu, Wei 1 ; Li, Wenhui 1 ; Zhou, Lian 1 ; Wang, Jian 1 ; Chen, Jiansong 1 ; Yang, Tifeng 1 ; Zhang, Shaohong 1 ; Zhao, Junliang 1 ; Liu, Bin 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou 510640, Peoples R China
2.Guangdong Key Lab New Technol Rice Breeding, Guangzhou 510640, Peoples R China
3.Guangdong Rice Engn Lab, Guangzhou 510640, Peoples R China
关键词： Flowering time; FLZ; OsMADS51; Ehd1; Rice
期刊名称：DEVELOPMENT （ 影响因子：4.6； 五年影响因子：6.1 ）
ISSN： 0950-1991
年卷期： 2022 年 149 卷 24 期
页码：
收录情况： SCI
摘要： Flowering time is an important agronomic trait affecting crop yield. FCS-LIKE ZINC FINGER (FLZ) proteins are plant-specific regulatory proteins that are involved in multiple biological processes. However, their roles in plant flowering time control have not been clarified. Here, we report that OsFLZ2 is a negative regulator of rice flowering time. OsFLZ2 delays flowering by repressing the expression of key floral integrator genes. Biochemical assays showed OsFLZ2 physically interacts with OsMADS51, a flowering activator under short-day (SD) conditions. Both OsFLZ2 and OsMADS51 are highly expressed in rice leaves before floral transition under natural SD conditions, and their proteins are colocalized in the nucleus. Co-expression of OsFLZ2 can destabilize OsMADS51 and weaken its transcriptional activation of the downstream target gene Early heading date 1 (Ehd1). Taken together, these results indicate that OsFLZ2 can interfere with the function of OsMADS51 to fine-tune rice flowering time.
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