相关实验视频

Updated: May 6, 2026

Development of Targeting Induced Local Lesions IN Genomes TILLING Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis

Development of Targeting Induced Local Lesions IN Genomes TILLING Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis

Published on: July 16, 2019

转录基因分析揭示了六倍体小麦 (Triticum aestivum L.) 中的克洛金托塞特-麦克西尔诱导基因

Olivia A Landau¹, Brendan V Jamison¹, Dean E Riechers¹

¹Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America.

|February 18, 2025

概括

研究人员在小麦中发现了可能对除草剂进行排毒的基因. 克洛金托塞特-梅西尔 (CM) 治疗诱导了这些基因的表达,特别是细胞染色体P450 (CYP81A-5A),这表明在除草剂代谢中发挥了作用.

科学领域:

植物生物化学和分子生物学.
农业科学和作物保护.

背景情况:

六倍体小麦 (Triticum aestivum L.) 缺乏已识别的除草剂排毒基因.
除草剂安全剂,如Cloquintocet-mexyl (CM),通常会诱导参与除草剂代谢的基因.

研究的目的:

为了确定参与小麦中哈洛西芬酸 (HA) 排毒的候选基因.
为了研究特定的细胞染色体P450 (CYP) 基因在响应CM和halauxifen-methyl (HM) 治疗时的表达模式.

主要方法:

RNA-Sequencing (RNA-Seq) 用于识别未经处理和CM处理的小麦叶组织之间的差异表达基因 (DEG).
定量逆转录聚合酶链反应 (RT-qPCR) 用于分析不同治疗下CYP81A-5A及其同类物 (CYP81A-5B,CYP81A-5D) 的表达.

主要成果:

确定了103种重要的DEG,其中许多与除草剂或异生物代谢有关.
基因实体学丰富分析显示了DEGs之间的氧化还原酶和转移酶活动.
发现CYP81A-5A,CYP81A-5B和CYP81A-5D的表达是CM诱导的,但不是HM诱导的.

结论:

该研究确定了包括CYP81A-5A在内的候选基因,这些基因可能参与小麦中HA解毒.
在CM治疗中,这些候选排毒基因的表达得到了上调.
需要进一步的功能研究来证实CYP81A-5A在HA解毒和CM介导上调中的作用.

更多相关视频

Obtaining High-Quality Transcriptome Data from Cereal Seeds by a Modified Method for Gene Expression Profiling

Obtaining High-Quality Transcriptome Data from Cereal Seeds by a Modified Method for Gene Expression Profiling

Published on: May 21, 2020

Isolation and Transcriptome Analysis of Plant Cell Types

Isolation and Transcriptome Analysis of Plant Cell Types

Published on: April 7, 2023

相关概念视频

Overview of Transposition and Recombination

Overview of Transposition and Recombination

Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...

Riboswitches

Riboswitches

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...