一个概念框架,以了解压力引起的生理和跨代影响,对人口应对气候变化的反应
Ondi L Crino1,2, Russell Bonduriansky3, Lynn B Martin4
1College of Science and Engineering, Flinders University, Bedford Park, SA, Australia.
Evolution letters
|February 19, 2024
概括
全球气候变化通过温度上升对生物产生影响. 脊椎动物中的葡萄糖皮质激素可能会调解种群反应和跨代演变.
科学领域:
- 环境生理学环境生理学
- 气候变化生物学
- 进化内分泌学的进化内分泌学
背景情况:
- 人为气候变化正在增加全球温度和变异性,对生物的生存构成挑战.
- 人口对温度变化的反应包括范围变化,表型可塑性,进化或灭绝.
- 在新的气候条件下预测人口持续性需要了解潜在的生理机制.
研究的目的:
- 提出一个概念框架,将温度变化,葡萄糖皮质激素反应和人口持久性联系在一起.
- 探索葡萄糖皮质体在调解脊椎动物对气候变化的反应中的作用,在几代人内和跨代人之间.
- 确定未来研究葡萄糖皮质激素介导的适应温度上升的关键问题.
主要方法:
- 对葡萄糖皮质激素生理学及其与环境温度的相互作用的审查.
- 葡萄糖皮质激素介导的表型效应对健康和人口动态的概念建模.
- 讨论跨代和代际影响,包括表观遗传修饰.
主要成果:
- 葡萄糖皮质激素是对环境压力因素 (包括温度) 的生理和行为反应的中心调解者.
- 葡萄糖皮质体效应可以影响个体表型和健康状况,具有跨代传播的潜力.
- 这些荷尔蒙反应可能会推动快速的进化变化,并影响气候变化下的人口持久性.
结论:
- 了解葡萄糖皮质激素介导机制对于预测脊椎动物对全球变暖的反应至关重要.
- 葡萄糖皮质体路径为快速适应或不适应不断变化的热环境提供了潜在的机制.
- 需要进一步的研究来阐明葡萄糖皮质激素在人口层面应对气候变化的确切作用.
更多相关视频
04:20Author Spotlight: Exploring Microglial Interactions with Stress-Response Circuitry Using the Limited Bedding and Nesting Model
Published on: July 12, 2024
1.6K
06:39Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants
Published on: June 13, 2021
3.1K
相关概念视频
Responses to Heat and Cold Stress
13.5K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.5K
Introduction to Stress and Lifestyle
111
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
111
Natural Selection and Adaptation
206
Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
Beyond physical adaptations,...
Beyond physical adaptations,...
206
Background 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
Psychological Responses to Stress
54
Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
54
Gene-Environment Interactions
318
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...
318
