Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

What are Populations and Communities?00:30

What are Populations and Communities?

34.1K
Overview
34.1K
What is Population Genetics?01:25

What is Population Genetics?

58.5K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
58.5K
Analysis of Population Pharmacokinetic Data01:12

Analysis of Population Pharmacokinetic Data

307
Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...
307
Conservation of Declining Populations02:07

Conservation of Declining Populations

9.7K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
9.7K
Life Histories01:29

Life Histories

18.1K
Overview
18.1K
Conservation of Small Populations02:04

Conservation of Small Populations

13.2K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
13.2K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Evolutionary inference reveals global natural histories and predicted pathways of antimicrobial resistance in Klebsiella pneumoniae.

PLoS biology·2026
Same author

Genetic traits of IncK2 plasmids and the <i>Escherichia coli</i> host underlying the association to the chicken gut.

Microbial genomics·2026
Same author

A One Health study of <i>Klebsiella pneumoniae</i> species complex plasmids shows a highly diverse and ecologically adaptable plasmidome.

Microbial genomics·2026
Same author

Convergence and global molecular epidemiology of Klebsiella pneumoniae plasmids harbouring the iuc3 virulence locus: a population genomic analysis.

The Lancet. Microbe·2026
Same author

Governing antimicrobial resistance in Norwegian livestock farming to 2050: a participatory strategy development approach.

Frontiers in veterinary science·2025
Same author

Monensin phase-out in Norwegian turkey production decreases <i>Bifidobacterium</i> spp. abundance while enhancing microbial diversity.

Microbial genomics·2025

相关实验视频

Updated: Jul 27, 2025

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
20:36

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling

Published on: July 4, 2007

8.8K

人口动态和人口特征.

Håkon Kaspersen1, Anne Margrete Urdahl1, Fiona Valerie Franklin-Alming2

  • 1Section for Food Safety and Animal Health, Norwegian Veterinary Institute, Ås, Norway.

Frontiers in microbiology
|June 5, 2023
PubMed
概括

克莱布西拉肺炎在家禽群中持续存在,一些序列类型 (ST) 随着时间的推移保持稳定. 耐药性与抗菌素耐药性 (AMR) 基因无关,但ST4710在火中显示出传播潜力.

关键词:
克莱布西埃拉菌 (Klebsiella) 是一种植物.ST471010 这是一个很棒的节目.brojler 肉 肉 是一个类家禽 类家禽序列类型 序列类型 序列类型土耳其土耳其土耳其

更多相关视频

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
04:52

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

1.0K
Discrimination and Characterization of Heterocellular Populations Using Quantitative Imaging Techniques
09:48

Discrimination and Characterization of Heterocellular Populations Using Quantitative Imaging Techniques

Published on: June 30, 2017

7.5K

相关实验视频

Last Updated: Jul 27, 2025

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
20:36

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling

Published on: July 4, 2007

8.8K
Following the Dynamics of Structural Variants in Experimentally Evolved Populations
04:52

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

1.0K
Discrimination and Characterization of Heterocellular Populations Using Quantitative Imaging Techniques
09:48

Discrimination and Characterization of Heterocellular Populations Using Quantitative Imaging Techniques

Published on: June 30, 2017

7.5K

科学领域:

  • 兽医微生物学 兽医微生物学
  • 细菌病原体的产生
  • 抗微生物耐药性 抗微生物耐药性

背景情况:

  • 肺炎Klebsiella是一种重要的机会性病原体,主要研究人类感染.
  • 关于K. pneumoniae在人类宿主之外的利基,特别是动物种群的知识缺口存在.
  • 之前的研究在挪威家禽中描述了K. pneumoniae,详细介绍了种群结构,序列类型 (ST) 和毒性/抗菌素耐药性 (AMR) 基因.

研究的目的:

  • 调查家禽中K. pneumoniae种群的时间动态.
  • 评估抗菌素耐药性 (AMR) 和毒性因子随时间变化的情况.
  • 专注于在肉和火群中特定序列类型 (ST) 的持久性.

主要方法:

  • 对2020年采样的391只家禽群 (271只肉,120只火) 的分析.
  • 在肉和火群中比较K. pneumoniae的发生率.
  • 识别和跟踪主要和持久性STs,以及对AMR和毒性基因的分析.

主要成果:

  • 在火群中,K. pneumoniae的流行率高于肉群 (24.0%),高于火群 (62.5%).
  • 一些ST,包括ST35,ST37,ST590和ST17,在采样年和宿主物种中表现出持久性.
  • 性病的持续性通常与AMR基因无关,除了ST590.
  • 在火中,一种高毒性ST4710菌株随着时间的推移而失去了沙尔莫切林位点,这可能是由于减少进化的原因.
  • 来自健康和患病的火的密切相关的ST4710分离体突出了其传播和传染潜力.

结论:

  • K. pneumoniae在家禽种群中表现出持久性,特定的STs随着时间的推移保持存在.
  • 在家禽中,K. pneumoniae STs的持续性并不是主要由抗菌素耐药性驱动的.
  • ST4710序列类型在火种群中具有显著的传播和传染潜力,正如等离子体动态和临床隔离物所证明的那样.