[鉴定和表达Trihelix转录因子家族人参基因的表达模式分析]
Yu-Lin Zhao1, Qi Wang1, Wen-Yue Peng1
1College of Chinese Herbal Medicine, Jilin Agricultural University Changchun 130118, China National and Local Joint Engineering Research Center for Breeding and Development of New Varieties of Ginseng Changchun 130118, China.
概括
这项研究在人参中确定了41个Trihelix基因,揭示了它们的核定位和在非生物应激反应中的作用,特别是低温. 一个基因,GWHGBEIJ010320.1,在寒冷压力下显示出显著的上调.
科学领域:
- 植物分子生物学 植物分子生物学
- 基因组学就是基因组学.
- 转录因子 转录因子
背景情况:
- 三体转录因子对于植物对各种非生物压力的反应至关重要.
- 关于人参 (Panax人参) 中的Trihelix基因家族存在有限的研究.
研究的目的:
- 为了识别和描述人参中的Trihelix基因家族.
- 研究人参Trihelix基因在非生物压力耐受性和植物发育中的潜在作用.
主要方法:
- 对人参基因组数据库的生物信息分析,以识别Trihelix基因.
- 对物理化学性质,cis作用元素,亚细胞局部化和染色体分布的分析.
- 与Arabidopsis thaliana进行跨种类对线性分析.
- 定量实时PCR (qRT-PCR) 用于在低温压力下分析基因表达.
主要成果:
- 在人参中鉴定出41个Trihelix基因家族成员.
- 发现85%的这些基因是核局部化的,随机卷轴和α螺旋作为主要结构.
- 在与非生物压力和荷尔蒙反应相关的促进体区域中发现了cis-acting元素.
- 在人参和Arabidopsis thaliana之间确定了19个对直线基因对.
- 在低温压力下观察到GWHGBEIJ010320.1的显著上调.
结论:
- 人参中的Trihelix基因家族具有特征,表明它参与了非生物应激信号传递.
- 鉴定的基因及其调节元件为了解人参的适应机制提供了基础.
- 对人参Trihelix基因的进一步研究可以增强作物改善策略的耐压力.
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