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 Experiment Videos

Frequency-dependent selection in bacterial populations.

B R Levin1

  • 1Department of Zoology, University of Massachusetts, Amherst 01003.

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
|July 6, 1988
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

A methodology for using Lambda phages as a proxy for pathogen transmission in hospitals.

The Journal of hospital infection·2023
Same author

Cardiomyopathy in muscular dystrophy.

QJM : monthly journal of the Association of Physicians·2017
Same author

AIDS as a population-dynamic-evolutionary process.

Trends in ecology & evolution·2011
Same author

Evaluating the risk of releasing genetically engineered organisms.

Trends in ecology & evolution·2011
Same author

Episodic selection and the maintenance of competence and natural transformation in Bacillus subtilis.

Genetics·2009
Same author

Phenotypic tolerance: antibiotic enrichment of noninherited resistance in bacterial populations.

Antimicrobial agents and chemotherapy·2005
Same journal

The microlandscapes of tree trunks: the effect of lichen and tree-level characteristics on arthropod communities.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
Same journal

Centimetre-scale landscapes to assess the motion behaviour and cognition of gastropods and bivalves.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
Same journal

Intertidal microcosms of wave-swept rocky shores: ecological and physiological insights from a uniquely stressful environment.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
Same journal

Temporal and spatial variation in temperature and oxygen at the microscale: key niche axes for aquatic life.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
Same journal

Natural microcosms in ecology: fulfilling the promise of model systems?

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
Same journal

Microbe-induced galls and plant defence: metabolite crosstalk in a co-evolutionary battle.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
See all related articles

Natural selection in bacteria depends on genotype frequencies. Stabilizing selection maintains genetic diversity by favoring rare types, while disruptive selection favors common types, hindering diversity.

Area of Science:

  • Microbiology
  • Evolutionary Biology
  • Genetics

Background:

  • Natural selection intensity and direction in bacterial populations are often influenced by genotype frequencies.
  • Frequency-dependent selection can either maintain genetic variability (stabilizing) or reduce it (disruptive).

Purpose of the Study:

  • To review theoretical and experimental studies on stabilizing and disruptive frequency-dependent selection in bacteria.
  • To explore the significance of frequency-dependent selection in bacterial adaptation and evolution.

Main Methods:

  • Review of theoretical models of frequency-dependent selection.
  • Analysis of experimental findings on bacterial populations under different selection pressures.

Main Results:

Related Experiment Videos

  • Phage-mediated selection for novel restriction-modification systems exemplifies stabilizing frequency-dependent selection.
  • Selection for toxin production and mutator genes often demonstrates disruptive frequency-dependent selection in mass cultures.

Conclusions:

  • Frequency-dependent selection plays a crucial role in bacterial adaptation and evolution.
  • Understanding these selection dynamics is key to comprehending the evolution of bacteria and their accessory genetic elements (plasmids, phages, transposons).