微生物群在适应季节性的动物宿主中引起补偿性适应
Dean B Peterson1, Rebecca Kreutz1, Peyton Jackson1
1Department of Plant and Wildlife Sciences, Brigham Young University, Provo, Utah, USA, 84602.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
果通过进化更快的发展时间来适应季节的变化,当它们的肠道细菌减缓它们时. 这显示了微生物如何塑造宿主进化.
科学领域:
- 进化生物学是进化的生物学.
- 微生物学 微生物学
- 生态生态学 生态生态学
背景情况:
- 德洛索菲拉 (Drosophila melanogaster) 的季节性适应提供了对环境变化进化反应的见解.
- 相关的微生物 (微生物群) 在宿主适应中发挥着重要作用.
- 了解微生物群与宿主相互作用对于进化研究至关重要.
研究的目的:
- 为了研究微生物群如何影响Drosophila melanogaster的季节性适应.
- 检查不同细菌菌株对生命史和种群动态的影响.
- 为了确定微生物群依赖的选择是否驱动发展中的补偿进化.
主要方法:
- 在户外的中宇宙中,在与特定细菌菌株接种的饮食中养Drosophila melanogaster.
- 在夏至秋季的季节中监测种群动态和微生物群组成.
- 比较有和没有完整的微生物群落的的发育表型.
主要成果:
- 细菌治疗影响了种群动态和微生物群组成.
- 发育表型在具有完整微生物群的中趋同,但在没有微生物的条件下有所分离.
- 进化了更快的发育时间,以弥补细菌引起的延迟,证明了微生物群依赖的选择.
结论:
- 微生物群依赖的选择始终推动季节性进化的的补偿性适应.
- 横向获得的微生物可以显著塑造它们动物宿主的进化.
- 这项研究揭示了宿主微生物共同进化的关键机制.
更多相关视频
05:08Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins
Published on: July 8, 2025
909
08:11Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
Published on: June 14, 2024
1.3K
相关概念视频
01:16Transduction
1.1K
Among the three main modes of HGT—transformation, conjugation, and transduction—transduction is unique in that it is mediated by bacteriophages, or bacterial viruses.Transduction occurs in two ways. Generalized transduction occurs during the lytic cycle of a bacteriophage infection. In this process, bacteriophages infect bacterial cells, replicate within them, and ultimately cause cell lysis, releasing newly assembled virions. Occasionally, random fragments of the bacterial genome...
1.1K
01:18Positive and Negative Feedback Loops
24.1K
Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis ("steady state"). Examples of these changes include regulation of the level of glucose or calcium in the blood or internal responses to external temperatures. Homeostasis requires maintaining an internal dynamic equilibrium:
24.1K
00:53Migration
8.7K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
8.7K
01:31Defense Against Bacterial Pathogens
2.6K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
2.6K
01:27Factors Influencing Microbial Growth: Temperature
1.1K
Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...
1.1K
02:45Biological Clocks and Seasonal Responses
41.4K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
41.4K