LTP2 低形态体在 Arabidopsis thaliana 早期幼苗特征中显示基因型与环境的相互作用
Cristina M Alexandre1, Kerry L Bubb1, Karla M Schultz1
1Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA.
The New phytologist
|October 22, 2023
概括
在Arabidopsis thaliana幼苗中减少了脂质转移蛋白2 (LTP2) 基因的表达,显著增加了表型变异. 这突出了单个基因如何影响同源个体的随机差异.
科学领域:
- 植物生物学 植物生物学
- 遗传学 是一个遗传学.
- 发展生物学 发展生物学
背景情况:
- 同源性个体表现出表型变异,使基因型对表型的预测变得复杂.
- 遗传背景会影响这种随机表型变化的程度.
- 识别控制这种变异的基因对于理解生物发育至关重要.
研究的目的:
- 为了研究脂质转移蛋白2 (LTP2) 基因在控制Arabidopsis thaliana幼苗的表型变异中的作用.
- 确定减少LTP2表达如何影响早期苗木特征和皮质完整性.
- 探索影响这种变异增加的遗传和环境因素.
主要方法:
- 对具有减少脂质转移蛋白2 (LTP2) 基因表达 (低形态) 的Arabidopsis thaliana突变物的分析.
- 对幼苗特征的表型评估,包括 hypocotyl 长度,重力化和皮层透性.
- 基因表达分析和表皮性质的检查.
主要成果:
- 与野生类型相比,LTP2低形态体在多种幼苗特征中的表型变异显著增加.
- 表皮性质和基因表达的差异与表型变异相关,表明皮质完整性受到损害.
- 环境条件调节了这种增加变化的可见性.
- 对于观察到的ltp2表型来说,需要增加对等基因脂质转移蛋白1 (LTP1) 的表达.
结论:
- 减少LTP2基因的表达可以在同源个体中产生大量的表型变异.
- 皮层完整性在调解随机表型差异方面发挥着关键作用.
- 这项研究揭示了一种机制,通过该机制,单个基因的减少表达可以在环境挑战下导致表型可塑性增加.
关键词:
在LTP2中使用LTP2.皮肤的完整性 皮肤的完整性基因与环境的相互作用这是一种 hypocotyl hypocotyl.低形态体是指一个低形态体.脂质转移蛋白质的转移蛋白质是什么非遗传变异是一种非遗传变异.现型变异的表型变化更多相关视频
09:31Inducible, Cell Type-Specific Expression in Arabidopsis thaliana Through LhGR-Mediated Trans-Activation
Published on: April 19, 2019
9.6K
10:10Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana
Published on: May 29, 2010
15.9K
相关概念视频
02:27Background and Environment Affect Phenotype
6.5K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.5K
01:10Transcription
147.1K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
147.1K
01:20Gene-Environment Interactions
332
Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
332
02:27Trihybrid Crosses
23.4K
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...
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...
23.4K
01:20Monohybrid Crosses
230.2K
Overview
230.2K