CRF12 specifically regulates the flowering time of Arabidopsis thaliana under non-inductive conditions

IF 6.2 1区生物学 Q1 PLANT SCIENCES

The Plant Journal Pub Date : 2025-02-05 DOI:10.1111/tpj.17257

Xia Li, Siyu Fang, Wanqin Chen, Siyuan Liu, Lirong Zhao, Zhiyu Xu, Shidie Chen, Yunwei Liu, Yang Du, Luyao Deng, Lei Liu, Ting Wang, Pingping Li, Yi Zhu, Diqiu Yu, Houping Wang

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引用次数: 0

Abstract

The flowering time of Arabidopsis thaliana, a model plant, is significantly accelerated when exposed to long-day (LD) conditions, as it is a typical LD plant. Consequently, the investigation of the flowering regulatory network in A. thaliana under LD conditions has garnered considerable attention in the study of flowering signals, resulting in a significant breakthrough. While many LD plants, including A. thaliana, exhibit delayed flowering under non-inductive short-day (SD) conditions, they are still capable of flowering. Nevertheless, research on the regulation of flowering induction in LD plants under non-inductive SD conditions has been limited. This study demonstrated the involvement of CYTOKININ RESPONSE FACTORS 12 (CRF12) in the regulation of flowering in A. thaliana under non-inductive conditions. Analysis of the expression patterns revealed that the activation of CRF12 expression and protein stability occurred exclusively in non-inductive environments. Molecular and genetic analyses revealed that under a non-inductive photoperiod of 12 h of light and 12 h of darkness, CRF12, CONSTANS (CO), and TARGET OF EAT 1/2 (TOE1/2) engage in competitive interactions to regulate flowering time, while in a SD photoperiod of 8 h of light and 16 h of darkness, CRF12 modulates flowering time by inhibiting the activity of TOE1/2.

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来源期刊

The Plant Journal 生物-植物科学

CiteScore

13.10

自引率

4.20%

发文量

415

审稿时长

2.3 months

期刊介绍： Publishing the best original research papers in all key areas of modern plant biology from the world"s leading laboratories, The Plant Journal provides a dynamic forum for this ever growing international research community. Plant science research is now at the forefront of research in the biological sciences, with breakthroughs in our understanding of fundamental processes in plants matching those in other organisms. The impact of molecular genetics and the availability of model and crop species can be seen in all aspects of plant biology. For publication in The Plant Journal the research must provide a highly significant new contribution to our understanding of plants and be of general interest to the plant science community.