Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Ecological Niches02:02

Ecological Niches

23.6K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
23.6K
Genetic Drift03:33

Genetic Drift

39.8K
Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
39.8K
Types of Selection01:46

Types of Selection

40.5K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
40.5K
Speciation Rates01:07

Speciation Rates

21.2K
Overview
21.2K
Genetics of Speciation02:16

Genetics of Speciation

19.3K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.3K
The Evidence for Evolution02:55

The Evidence for Evolution

42.7K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
42.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Unveiling the crystal phase effect of MnO<sub>2</sub> in deep thallium(I) removal: Structure-activity relationships and mechanisms.

Water research·2026
Same author

Diversity and evolution of a phase-variable multi-locus antigen in Neisseria gonorrhoeae.

PLoS pathogens·2026
Same author

Evolution and Future Path of Global Farmland Soil Pollution Remediation Over the Past Five Decades.

Integrated environmental assessment and management·2026
Same author

Diversity and evolution of a phase-variable multi-locus antigen in <i>Neisseria gonorrhoeae</i>.

bioRxiv : the preprint server for biology·2026
Same author

Comprehensive cardiac magnetic resonance imaging in patients with idiopathic premature ventricular contractions: role of feature-tracking strain and T1/T2 mapping in detecting subclinical myocardial dysfunction.

Quantitative imaging in medicine and surgery·2026
Same author

The evolution of genetic drift over 50,000 generations.

bioRxiv : the preprint server for biology·2026

Related Experiment Video

Updated: Jul 4, 2025

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

973

Rediversification following ecotype isolation reveals hidden adaptive potential.

Joao A Ascensao1, Jonas Denk2, Kristen Lok1

  • 1Department of Bioengineering, University of California, Berkeley, Berkeley, CA, USA.

Current Biology : CB
|February 7, 2024
PubMed
Summary

Microbial communities can regenerate diversity after ecotype removal, forming new ecotypes that coexist. These rediversified communities differ from original ones, showing alternative evolutionary pathways are possible even in simple systems.

Keywords:
eco-evolutionary dynamicseco-evolutionary resilienceecological diversificationexperimental evolutionmicrobial communitiesmicrobial evolution

More Related Videos

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
15:00

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

3.3K
Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

765

Related Experiment Videos

Last Updated: Jul 4, 2025

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

973
Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
15:00

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

3.3K
Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

765

Area of Science:

  • Microbial ecology
  • Evolutionary biology
  • Ecological dynamics

Background:

  • Microbial communities are vital for ecosystem functions, with diversity being crucial for stability.
  • The ability of microbial communities to regenerate diversity after disturbances like ecotype extinction is poorly understood.

Purpose of the Study:

  • To investigate if simple microbial communities can rediversify after ecotype removal.
  • To compare the characteristics of rediversified communities with the original ones.
  • To explore the mechanisms of coexistence in regenerated communities.

Main Methods:

  • Utilized two-ecotype Escherichia coli (E. coli) communities from the long-term evolution experiment (LTEE).
  • Isolated one ecotype to induce rediversification.
  • Analyzed community composition, ecotype coexistence mechanisms (negative frequency-dependent selection), growth traits, and transcriptional states.

Main Results:

  • Simple two-ecotype E. coli communities consistently rediversified into two coexisting ecotypes after isolation of one.
  • Rediversification occurred similarly across communities with significant evolutionary divergence (over 30,000 generations).
  • Rediversified ecotypes shared some traits with the replaced ecotype but differed in aspects like stationary phase response and survival, with distinct transcriptional patterns.

Conclusions:

  • Evolution allows for alternative diversification pathways even in highly simplified microbial communities.
  • Disturbances like ecotype removal can drive novel evolutionary trajectories and community structures.
  • The potential for alternative evolutionary pathways may be greater in more complex, multi-species communities.