您好，欢迎访问江西省农业科学院 机构知识库！

A base substitution in OsphyC disturbs its Interaction with OsphyB and affects flowering time and chlorophyll synthesis in rice

文献类型： 外文期刊

作者： Lin, Xiaoli 1 ; Huang, Yongping 2 ; Rao, Yuchun 3 ; Ouyang, Linjuan 1 ; Zhou, Dahu 1 ; Zhu, Changlan 1 ; Fu, Junru 1 ; Chen, Chunlian 2 ; Yin, Jianhua 2 ; Bian, Jianmin 1 ; He, Haohua 1 ; Zou, Guoxing 2 ; Xu, Jie 1 ;

作者机构： 1.Jiangxi Agr Univ, Coll Agron, Key Lab Crop Physiol Ecol & Genet Breeding, Minist Educ, Nanchang 330045, Peoples R China

2.Jiangxi Acad Agr Sci, Rice Res Inst, Natl Engn Lab Rice Nanchang, Nanchang 330200, Peoples R China

3.Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua 321004, Peoples R China

关键词： Phytochrome C; Flowering time; Chlorophyll synthesis; Dimerization; Rice

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.26； 五年影响因子：5.761 ）

ISSN： 1471-2229

年卷期： 2022 年 22 卷 1 期

页码：

收录情况： SCI

摘要： Background: Phytochromes are important photoreceptors in plants, and play essential roles in photomorphogenesis. The functions of PhyA and PhyB in plants have been fully analyzed, while those of PhyC in plant are not well understood. Results: A rice mutant, late heading date 3 (lhd3), was characterized, and the gene LHD3 was identified with a map-based cloning strategy. LHD3 encodes phytochrome C in rice. Animo acid substitution in OsphyC disrupted its interaction with OsphyB or itself, restraining functional forms of homodimer or heterodimer formation. Compared with wild-type plants, the lhd3 mutant exhibited delayed flowering under both LD (long-day) and SD (short-day) conditions, and delayed flowering time was positively associated with the day length via the Ehd1 pathway. In addition, lhd3 showed a pale-green-leaf phenotype and a slower chlorophyll synthesis rate during the greening process. The transcription patterns of many key genes involved in photoperiod-mediated flowering and chlorophyll synthesis were altered in lhd3. Conclusion: The dimerization of OsPhyC is important for its functions in the regulation of chlorophyll synthesis and heading. Our findings will facilitate efforts to further elucidate the function and mechanism of OsphyC and during light signal transduction in rice.

  • 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：江西省农业科学院

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