BnPLP1 Positively Regulates Flowering Time, Plant Height, and Main Inflorescence Length in Brassica napus
文献类型： 外文期刊
作者： Ding, Ting 1 ; Cai, Lei 1 ; He, Yuqi 1 ; Li, Yuanhong 1 ; Tian, Entang 1 ; Zhou, Qianhui 1 ; Zhou, Xufan 1 ; Wang, Xiaodong 3 ; Yu, Kunjiang 1 ; Shen, Xinjie 1 ; Batley, Jacqueline 1 ;
作者机构： 1.Guizhou Univ, Coll Agr, Guiyang 550025, Peoples R China
2.Guizhou Univ, Ctr Res & Dev Fine Chem, Guiyang 550025, Peoples R China
3.Jiangsu Acad Agr Sci, Inst Ind Crops, Key Lab Cotton & Rapeseed, Minist Agr & Rural Affairs, Nanjing 210014, Peoples R China
关键词： Brassica napus; rapeseed; flowering time; plant height; main inflorescence length; protein prenylation
期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）
ISSN：
年卷期： 2023 年 14 卷 12 期
页码：
收录情况： SCI
摘要： Protein prenylation mediated by the Arabidopsis thaliana PLURIPETALA (AtPLP) gene plays a crucial role in plant growth, development, and environmental response by adding a 15-carbon farnesyl group or one to two 20-carbon geranylgeranyl groups onto one to two cysteine residues at the C-terminus of the target protein. However, the homologous genes and their functions of AtPLP in rapeseed are unclear. In this study, bioinformatics analysis and gene cloning demonstrated the existence of two homologous genes of AtPLP in the Brassica napus L. genome, namely, BnPLP1 and BnPLP2. Evolutionary analysis revealed that BnPLP1 originated from the B. rapa L. genome, while BnPLP2 originated from the B. oleracea L. genome. Genetic transformation analysis revealed that the overexpression of BnPLP1 in Arabidopsis plants exhibited earlier flowering initiation, a prolonged flowering period, increased plant height, and longer main inflorescence length compared to the wild type. Contrarily, the downregulation of BnPLP1 expression in B. napus plants led to delayed flowering initiation, shortened flowering period, decreased plant height, and reduced main inflorescence length compared to the wild type. These findings indicate that the BnPLP1 gene positively regulates flowering time, plant height, and main inflorescence length. This provides a new gene for the genetic improvement of flowering time and plant architecture in rapeseed.
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