相关实验视频

Updated: May 21, 2025

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

两种TaCHLI的同质基因表达确保了Hexaploid小麦中正常的叶绿素生物合成

Jian Yang¹, Yankun Zhao², Yanmin Zou³

¹National Laboratory of Wheat Engineering, Key Laboratory of Wheat Biology and Genetic Breeding in Central Huang-huai Region, Ministry of Agriculture, Henan Key Laboratory of Wheat Biology, Institute of Wheat, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, Henan, China.

Plant physiology and biochemistry : PPB

|March 25, 2025

概括

多倍体植物利用基因重复来获得健康,但重复的基因可能会失去功能. 在小麦中,TACHLI-7A和TACHLI-7B之间的遗传互补性对于正常的叶绿体发育和叶子颜色至关重要.

科学领域:

植物遗传学植物遗传学
多类动物的进化过程.
分子生物学分子生物学

背景情况:

多重积分学赋予了健身优势,但对重复的基因提出了挑战.
多倍体中的基因重复可以导致保留祖先的功能,通过剂量或冗余影响表型.
在有害突变下需要复杂形成的重复基因的命运尚不清楚.

研究的目的:

研究小麦中一种黄色绿色叶子突变 (ygl2) 的遗传基础.
阐明TACHLI-7A和TACHLI-7B在质体发育和叶子颜色中的作用.
了解多倍体进化中基因剂量和功能互补性的机制.

主要方法:

在小麦品种S3025和S4185.5之间进行受控的遗传交叉.
在TACHLI-7A和TACHLI-7B基因中对零和截断突变的分析.
基因测序和TACHLI-7D的表达水平分析.
对叶绿素合成和mRNA丰度的评估.

主要成果:

这种YGL2突变的表型是TACHLI-7A无和TACHLI-7B截断突变结合的结果.
在TACHLI-7A或TACHLI-7B中,个别的零或截断突变不会导致突变的表型,这表明遗传互补性.
在所有研究的线条中,TaCHLI-7D被保留了.
在TaCHLI-7A无线中充分的叶绿素合成证明了冗余的mRNA剂量缓冲基因失衡.

结论:

塔奇利-7A和塔奇利-7B之间的遗传互补性对于正常的叶绿体发育和叶子颜色至关重要.
冗余的mRNA剂量TaCHLI-7A补偿基因损失,允许其保留在品种中.
这项研究提供了关于多倍体进化过程中的同源体损失和功能机制的见解,这表明通过基因损失进行简化可能是有利的.

关键词:

遗传上的互补性遗传上的互补性六倍体小麦是一种六倍体小麦.同类生物学家的损失.胆酶是一种胆酶.冗余的mRNA剂量冗余的mRNA剂量

更多相关视频

Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer

Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer

Published on: October 14, 2022

Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana

Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana

Published on: May 29, 2010

相关概念视频

Light Acquisition

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.

Trihybrid Crosses

Trihybrid Crosses

Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...

Genetic Lingo

Genetic Lingo