由PhF3'5'H-PhBGLU12-PhSCPL2催化的多化素生物合成确定了Cineraria (Pericallis杂交) 中的蓝色色素
Yumeng Cui1, Jiangshan Ren1, Jiawei Fan1
1Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Education Ministry, School of Landscape Architecture, Beijing Forestry University, Beijing, China.
Plant biotechnology journal
|August 18, 2025
概括
研究人员确定了关键基因 (PhBGLU12,PhSCPL2) 和调控因子 (PhMYB6,PhWRKY44) 控制蓝色花色素 (多化安素) 生物合成在 cineraria. 这一发现有助于培育蓝色装饰品种.
科学领域:
- 植物分子生物学 植物分子生物学
- 生物化学 生物化学
- 装饰园艺 装饰园艺 装饰园艺
背景情况:
- 酸的多化对于植物的蓝色花朵颜色至关重要.
- 生物合成和调节的多化安东素还没有很好地理解.
- 奇纳利亚 (Pericallis hybrida) 由于多化海豚衍生物,显示出独特的蓝色色素.
研究的目的:
- 为了阐明基因和调节机制的基因和调节机制,在 cineraria 基因中的多化安素生物合成.
- 为了确定参与生产蓝色花色素的基因和转录因子.
- 为蓝色装饰植物的分子育种提供见解.
主要方法:
- 基因鉴定和鉴定 (PhBGLU12,PhSCPL2).
- 用于基因沉默的RNA干扰 (RNAi).
- 基因表达分析 (共同表达,转录因子检测).
- 电泳运动转移试验 (EMSA) 和双化酶试验.
主要成果:
- 鉴定出PhBGLU12和PhSCPL2是多化海豚素衍生物的关键修饰基因.
- 沉默这些基因导致色素减少和色彩色.
- PhMYB6直接激活了PhF3'5'H和PhBGLU12,促进了色素生物合成.
- PhWRKY44激活PhMYB6,与PhMYB6形成一个积极的反循环,这对安东素积累至关重要.
结论:
- 一个涉及PhWRKY44,PhMYB6,PhF3'5'H,PhBGLU12和PhSCPL2的调控模块控制了多化安素生物合成.
- 这种复杂的途径解释了 cineraria 中蓝色花色素的发展.
- 已识别的基因和调节网络为繁殖蓝色装饰品品种提供了宝贵的遗传资源.
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