文献类型： 外文期刊
作者： Wu, Wei 1 ; Li, Chaoqun 2 ; Zhang, Qi 2 ; Wang, Yan 1 ; Li, Xueying 1 ; Yang, Qin 1 ; Dong, Lili 2 ;
作者机构： 1.Anhui Acad Agr Sci, Agr Engn Res Inst, Hefei 230001, Peoples R China
2.Anhui Agr Univ, Dept Ornamental Hort, Hefei 230061, Peoples R China
关键词： Arabidopsis; Petunia hybrida; branch development; regulation mechanism; PhSPEAR1
期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）
ISSN：
年卷期： 2024 年 10 卷 9 期
页码：
收录情况： SCI
摘要： Petunia hybrida is an economically important ornamental plant species. Branching in ornamental plants is closely associated with their ornamental traits, and branching is a significant agronomic trait in petunia, which shapes plant architecture and production cost. Although there are few studies regarding the involvement of the SPEAR genes in lateral branch development, they are known to regulate the development of plant organs. The PhSPEAR1 gene in petunia, an ortholog of Arabidopsis SPEAR1, was isolated for study. According to the results of real-time quantitative PCR (qRT-PCR), PhSPEAR1 was primarily expressed in the roots. The fluorescence signal indicated that PhSPEAR1 was localized in the nucleus and cytoplasm. An increase in PhSPEAR1 expression was induced by cytokinin or decapitation. Overexpression of PhSPEAR1 increased lateral branches in Arabidopsis. Based on our findings, PhSPEAR1 participates significantly in the regulation of branch number in petunia.
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