您好，欢迎访问湖北省农业科学院 机构知识库！
湖北省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Drought and low temperature-induced NF-YA1 activates FT expression to promote citrus flowering

文献类型： 外文期刊

作者： Zhou, Huan 1 ; Zeng, Ren-Fang 1 ; Liu, Tian-Jia 1 ; Ai, Xiao-Yan 2 ; Ren, Meng-Ke 3 ; Zhou, Jing-Jing 1 ; Hu, Chun-Gen 1 ; Zhang, Jin-Zhi 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Hort & Forestry Sci, Key Lab Hort Plant Biol, Minist Educ, Wuhan 430070, Peoples R China

2.Hubei Acad Agr Sci, Inst Pomol & Tea, Wuhan, Peoples R China

3.Huazhong Agr Univ, Coll Life Sci & Technol, Wuhan, Peoples R China

关键词： citrus; FE; flowering time; LEAFY; sweet orange

期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：7.947； 五年影响因子：8.452 ）

ISSN： 0140-7791

年卷期： 2022 年 45 卷 12 期

页码：

收录情况： SCI

摘要： Flower induction in adult citrus is mainly regulated by drought and low temperatures. However, the mechanism of FLOWERING LOCUS T regulation of citrus flowering (CiFT) under two flower-inductive stimuli remains largely unclear. In this study, a citrus transcription factor, nuclear factor YA (CiNF-YA1), was found to specifically bind to the CiFT promoter by forming a complex with CiNF-YB2 and CiNF-YC2 to activate CiFT expression. CiNF-YA1 was induced in juvenile citrus by low temperature and drought treatments. Overexpression of CiNF-YA1 increased drought susceptibility in transgenic citrus, whereas suppression of CiNF-YA1 enhanced drought tolerance in silenced citrus plants. Furthermore, a GOLDEN(2)(-)LIKE protein (CiFE) that interacts with CiFT protein was also isolated. Further experimental evidence showed that CiFE binds to the citrus LEAFY (CiLFY) promoter and activates its expression. In addition, the expressions of CiNF-YA1 and CiFE showed a seasonal increase during the floral induction period and were induced by artificial drought and low-temperature treatments at which floral induction occurred. These results indicate that CiNF-YA1 may activate CiFT expression in response to drought and low temperatures by binding to the CiFT promoter. CiFT then forms a complex with CiFE to activate CiLFY, thereby promoting the flowering of adult citrus.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：湖北省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台