环境对环境的相互作用在基因背景上不同
Kara Schmidlin1,2, Brandon C Ogbunugafor3,4, Alexander Sastokas1,2
1Center for Mechanisms of Evolution, Arizona State University, Tempe, AZ 85287, USA.
Molecular biology and evolution
|November 8, 2025
概括
环境对环境的相互作用显著影响表型,并且在基因型之间存在差异. 了解这些复杂的相互作用是进化遗传学和模拟微生物进化的关键.
科学领域:
- 进化生物学是进化的生物学.
- 人口遗传学 人口遗传学
- 微生物遗传学微生物遗传学
背景情况:
- 环境条件通过塑造表型和健康来影响进化轨迹.
- 环境对环境的相互作用发生在两个环境的结合效应与它们的单个影响有所不同时.
- 虽然基因-基因和基因-环境相互作用得到了很好的研究,但环境-环境相互作用的认可较少.
研究的目的:
- 研究环境对环境相互作用在驱动表型变异中的作用.
- 为了确定环境对环境的相互作用是否在基因型之间存在差异,建议环境对环境对基因型的相互作用.
- 突出这些复杂的相互作用在进化和种群遗传学中的重要性.
主要方法:
- 对大数据集的分析,大约包括1000种突变酵母菌株.
- 对不同抗真菌药物的不同程度的耐药性的评估.
- 对各种突变基因型中药物相互作用的检查.
主要成果:
- 发现环境对环境的相互作用是表型的重要驱动因素.
- 观察到这些相互作用在基因型之间存在差异,表明环境对环境对基因型的相互作用.
- 药物的有效性在药物组合和突变基因型的基础上有很大的差异,即使是单个核酸差异.
结论:
- 环境对环境对基因型的相互作用是进化和种群遗传学的关键,但经常被忽视的因素.
- 了解这些相互作用对于准确建模病原性微生物进化至关重要.
- 这些相互作用提供了关于群体内表型变异的来源和生物系统复杂行为的见解.
相关概念视频
Gene-Environment Interactions
1.1K
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...
1.1K
Background and Environment Affect Phenotype
7.4K
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...
7.4K
Behavioral Genetics and Its Designs
981
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
981
Causes of Social Behavior III: Biological and Environmental Influences
220
Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...
220
Heritability
569
Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic"...
569
Gene Flow
37.3K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
37.3K


