相关实验视频
Updated: Jul 15, 2025

07:37
Resurrection of Dormant Daphnia magna: Protocol and Applications
Published on: January 19, 2018
18.4K
幼虫对变暖和干燥的塑性反应延迟了后变态脚的淋巴体成熟
Pablo Burraco1, Juan Carlos Torres-Montoro1, Ivan Gomez-Mestre1
1Ecology, Evolution and Development Group, Department of Wetland Ecology, Doñana Biological Station (CSIC), Sevilla, Spain.
Evolution; international journal of organic evolution
|October 4, 2023
概括
两幼虫阶段的环境变化显著影响淋巴体成熟. 发育可塑性影响体质和淋巴体生长,携带效应影响幼青的生殖能力.
科学领域:
- 发育生物学是发展生物学.
- 生态生态学 生态生态学
- 进化生物学是进化的生物学.
背景情况:
- 生物体表现出发育性可塑性,适应环境条件的特征.
- 两幼虫是研究环境波动导致的可塑性的模型系统.
- 塑性对体和性腺发育的差异性影响尚不清楚.
研究的目的:
- 为了研究由变暖和干燥风险驱动的发育加速如何影响西部脚 (Pelobates cultripes) 的淋巴体成熟.
- 确定幼虫可塑性是否影响后变形性腺体发育和潜在的健康后果.
主要方法:
- 在幼虫发育过程中对温度和水位进行实验性操纵.
- 在变形时评估体和性腺发育.
- 在青少年的性腺成熟的评估5个月后变形.
主要成果:
- 变暖和干燥风险对幼虫的发育和变形产生了附加效应.
- 在变形过程中和之后,两种性别的性腺成熟都受到限制.
- 幼虫的状况导致了性别特异性对幼性腺成熟的转移效应,温度延迟了雌性卵巢成熟,高温/水位延迟了雄性丸成熟.
结论:
- 幼虫的可塑性显著影响转型物种的淋巴体成熟.
- 在幼虫阶段经历的环境条件对生殖发育有持久的,性别特异性的影响.
- 这些发现对人口动态和生命史的演变有影响.
相关概念视频
Background and Environment Affect Phenotype
6.6K
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...
6.6K
Responses to Heat and Cold Stress
13.6K
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.
13.6K
Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K

