图1. Ef-cd实现水稻早熟与稳产的工作模型
Ef-cd编码的lncRNA与OsSOC1基因的一段反义转录本重叠。 Ef-cd正调控OsSOC1基因的表达, 进而提高成花素基因Hd3a和RFT1的表达水平, 缩短水稻生育期。同时, Ef-cd通过提高氮素利用率及光合效率实现水稻的早熟与稳产。

Figure 1. A proposed working model showing Ef-cd-promoted maturity without yield penalty in rice
Ef-cd (Early flowering-completely dominant) encodes a long noncoding RNA, which overlaps with the antisense transcript of the OsSOC1 gene. Ef-cd lncRNA positively regulates the expression of OsSOC1 and florigen genes Hd3a and RFT1. Ef-cd could promote rice flowering. On the other hand, Ef-cd could facilitate nitrogen utilization and improve photosynthesis. Thus, Ef-cd contributes to early maturating with stable grain yield.