The transcriptional regulator VAL1 promotes Arabidopsis flowering by repressing the organ boundary genes BOP1 and BOP2.

ABSTRACT: The transition to reproductive development is a critical step in the plant lifecycle and relies on the integration of intrinsic and environmental signals. Several different pathways controlling flowering time function downstream of the perception of environmental cues such as day length (photoperiodic pathway) and seasonal temperature (vernalization and ambient temperature pathways). In addition, the phytohormone gibberellin (GA) induces the floral transition under noninductive photoperiod. In the model plant Arabidopsis (Arabidopsis thaliana), the transcriptional repressor VIVIPAROUS1/ABSCISIC ACID INSENTIVE3 (ABI3)-LIKE1 (VAL1) triggers the stable repression of the floral repressor FLOWERING LOCUS C (FLC) during vernalization. However, the involvement of VAL1 in other flowering pathways

SUBMITTER: Cheng Y 

PROVIDER: S-EPMC12152480 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature