Five Rice Seed-Specific NF-YC Genes Redundantly Regulate Grain Quality and Seed Germination via Interfering Gibberellin Pathway
文献类型： 外文期刊
作者： Xu, Huayu 1 ; Li, Shufan 1 ; Kazeem, Bello Babatunde 1 ; Ajadi, Abolore Adijat 1 ; Luo, Jinjin 1 ; Yin, Man 1 ; Liu, Xinyong 1 ; Chen, Lijuan 1 ; Ying, Jiezheng 1 ; Tong, Xiaohong 1 ; Wang, Yifeng 1 ; Niu, Baixiao 2 ; Chen, Chen 2 ; Zeng, Xiaoshan 3 ; Zhang, Jian 1 ;
作者机构： 1.China Natl Rice Res Inst, State Key Lab Rice Biol, Hangzhou 311400, Peoples R China
2.Yangzhou Univ, Coll Agr, Yangzhou 225009, Peoples R China
3.Hunan Acad Agr Sci, Hunan Rice Res Inst, Changsha 410125, Peoples R China
关键词： rice (Oryza sativa L; ); gibberellins; abscisic acid; NF-YCs
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）
ISSN：
年卷期： 2022 年 23 卷 15 期
页码：
收录情况： SCI
摘要： NF-YCs are important transcription factors with diverse functions in the plant kingdoms including seed development. NF-YC8, 9, 10, 11 and 12 are close homologs with similar seed-specific expression patterns. Despite the fact that some of the NF-YCs are functionally known; their biological roles have not been systematically explored yet, given the potential functional redundancy. In this study, we generated pentuple mutant pnfyc of NF-YC8-12 and revealed their functions in the regulation of grain quality and seed germination. pnfyc grains displayed significantly more chalkiness with abnormal starch granule packaging. pnfyc seed germination and post-germination growth are much slower than the wild-type NIP, largely owing to the GA-deficiency as exogenous GA was able to fully recover the germination phenotype. The RNA-seq experiment identified a total of 469 differentially expressed genes, and several GA-, ABA- and grain quality control-related genes might be transcriptionally regulated by the five NF-YCs, as revealed by qRT-PCR analysis. The results demonstrated the redundant functions of NF-YC8-12 in regulating GA pathways that underpin rice grain quality and seed germination, and shed a novel light on the functions of the seed-specific NF-YCs.
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