相关实验视频
Updated: Sep 16, 2025
11:51
Potato Virus X-Based microRNA Silencing VbMS In Potato.
Published on: May 11, 2020
3.3K
StMYB308L及其对马中黄类生物合成途径的调节作用
Juan Wu1,2, Peijie Wang1, Rui Xie2
1Agricultural College, Inner Mongolia Agricultural University, Hohhot, China.
BMC plant biology
|July 8, 2025
概括
研究人员确定了StMYB308L,这是一个调节彩色土豆中安托素和黄类化合物合成的基因. 过度表达这种基因增强了土豆和烟草植物的色素和抗氧化能力.
科学领域:
- 植物分子生物学 植物分子生物学
- 遗传学 遗传学 是一个
- 生物化学 生物化学
背景情况:
- 彩色土豆 (Solanum tuberosum L.) 越来越多地因其独特的特征而受到研究.
- 了解土豆色素的遗传基础对于改善作物至关重要.
研究的目的:
- 为了研究StMYB308L基因在调节土豆中的颜料合成中的作用.
- 分析StMYB308L过度表达对植物色素和相关基因表达的影响.
主要方法:
- 对StMYB308L (R2R3-MYB家族) 的基因克隆和表征.
- 转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因转基因 StMYB308L.
- 使用转录学分析的基因表达 (StCHS,StF3'5H,StCHI,StDFR,Nt4CLs,NtDFRs,NtANSs,NtBZ1s) 的分析.
- 测量素和黄酸含量,以及总抗氧化能力.
主要成果:
- StMYB308L的表达受GA3,乙烯基醇和温度的影响,在紫色的土豆茎中意义更大.
- 马中StMYB308L的过度表达导致了更深的茎,并增加了关键的黄类合成基因的表达.
- 转基因烟草植物表现出增强的花颜色,更高的抗生素和黄素含量,以及增加的抗氧化能力.
- 转录组分析显示,转基因烟草中有20775个差异表达的基因,富含二次代谢物和黄类生物合成途径.
结论:
- StMYB308L在调节黄和素积累方面发挥着重要作用.
- 过度表达StMYB308L上调下游基因,参与植物中氨酸生物合成途径.
- 这项研究提供了对控制彩色马品种颜色变化的遗传机制的见解.
更多相关视频
08:31Agrobacterium tumefaciens and Agrobacterium rhizogenes-Mediated Transformation of Potato and the Promoter Activity of a Suberin Gene by GUS Staining
Published on: March 29, 2019
29.8K
08:59Plant-Microbe Interaction: Transcriptional Response of Bacillus Mycoides to Potato Root Exudates
Published on: July 2, 2018
12.7K
相关概念视频
01:56Riboswitches
8.6K
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
8.6K
01:23Transcriptional Regulation: Riboswitches
124
Riboswitches are RNA elements that regulate gene expression by altering their secondary structures in response to specific effector molecules. These elements, located in the leader regions of certain mRNAs, act as transcriptional regulators by toggling between alternative conformations to control downstream gene expression. Riboswitch-mediated regulation is a precise mechanism for modulating biosynthetic pathways, as exemplified by the riboflavin biosynthesis pathway in Bacillus...
124