相关实验视频

Updated: Sep 15, 2025

Thermal Limits Determination for Zooplankton Using a Heat Block

Thermal Limits Determination for Zooplankton Using a Heat Block

Published on: November 18, 2022

热暴露诱导的分子变化的比较分析在两个海物种与对比的热适应的分子变化

Jian Hong¹, Yangchun Gao², Jiaxuan Li¹

¹College of Life Science and Technology, Jinan University, Guangzhou, China.

Integrative zoology

|July 17, 2025

概括

由于气候变化,海面临着热应激. 这项研究揭示了耐热与耐热性乌的不同基因表达,显示了为生存而进行的分子适应.

科学领域:

* 分子生物学 * 分子生物学
* 生态学 * 生态学
* 气候变化生物学

背景情况:

* 全球气候变化正在增加热应激,对爬行动物和两动物的生存构成威胁.
*了解的耐热分子机制对于预测它们对气候变化的反应至关重要.
* 热耐受性存在物种特异性差异,但潜在的遗传因素在很大程度上仍未知.

研究的目的:

* 为了识别两种具有对比的耐热度的乌物种对热应激的不同表达基因 (DEGs).
* 研究Platysternon大脑 (耐受性低) 和Trachemys scripta elegans (耐受性高) 热应激适应的分子机制.
* 用于在热应激条件下比较组织特异性基因表达特征.

主要方法:

*使用RNA测序 (RNA-seq) 来分析P. megacephalum和T. scripta elegans的八种组织中的基因表达.
*海受到热应激 (32°C),并与对照条件 (25°C) 相比.
*使用生物信息学分析确定了差异表达基因 (DEG) 和丰富的途径.

主要成果:

* Platysternon大脑表现出能量/脂质代谢基因的下调和所有组织中含有2 (JARID2) 的jumonji和AT丰富的相互作用域的上调.
* 在P. megacephalum中,细胞内网路中的蛋白质处理得到了丰富,主要的热冲击蛋白 (HSP) 在脑组织中得到了上调.
* Trachemys scripta elegans 在大脑中表现出对核糖体基因的上调和肠道细胞循环基因的下调,这表明对蛋白质合成和能量保存的适应性反应.

结论:

*Trachemys scripta elegans表现出分子适应,包括增强蛋白质合成和节能,有助于其更高的耐热性.
*鉴定到的分子差异提供了关于海对气候变化引起的热应激的适应能力的见解.
* 这项研究为保护策略提供了有价值的数据,旨在保护种群在变暖的世界.

关键词:

石板巨头没有巨头.这种植物是Trachemys scripta elegans.细胞内膜网膜的内oplasmic网膜.热应激是一种热应激.转录组分析转录组分析

更多相关视频

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

Single-Animal, Single-Tube RNA Extraction for Comparison of Relative Transcript Levels via qRT-PCR in the Tardigrade Hypsibius exemplaris

Single-Animal, Single-Tube RNA Extraction for Comparison of Relative Transcript Levels via qRT-PCR in the Tardigrade Hypsibius exemplaris

Published on: January 3, 2025

相关概念视频

Background and Environment Affect Phenotype

Background and Environment Affect Phenotype

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...

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

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.