Transcriptional regulation of floral meristem identity genes: A new pathway to initiate flower formation.
|演題||Transcriptional regulation of floral meristem identity genes: A new pathway to initiate flower formation.|
|講演者||Dr. Ayako Yamaguchi (University of Pennsylvania)|
The transition from vegetative to reproductive development in plants is controlled by environmental and endogenous cues to optimize reproductive fitness. These multiple cues need to be integrated temporally and spatially for the proper developmental regulation of the initiation of flower formation during the meristem identity (MI) transition. In Arabidopsis, the transcription factors LEAFY (LFY), APETALA1 (AP1) and FRUITFULL (FUL) play a key role in this process. How the relevant environmental and endogenous cues together trigger LFY, AP1 and FUL upregulation is still not fully understood. Inductive photoperiod activates expression of all three MI regulators, while gibberellin hormone signaling upregulates LFY expression. Recently, we and others identified a new pathway that activates LFY, AP1, and FUL expression during the MI transition (Wang et al., 2009; Yamaguchi et al., 2009).
相田 光宏 (email@example.com)