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

Gene Flow02:39

Gene Flow

37.2K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
37.2K
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

61.5K
In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
61.5K
Genetic Drift03:33

Genetic Drift

42.6K
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.
42.6K
Genetics of Speciation02:16

Genetics of Speciation

20.7K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
20.7K
Gene Conversion02:08

Gene Conversion

10.5K
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
10.5K
Gene Conversion02:08

Gene Conversion

2.8K
2.8K

You might also read

Related Articles

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

Sort by
Same author

Evolution of Functional Genomic Diversity During a Bottleneck.

Genome biology and evolution·2025
Same author

Seafaring and navigation in the Nordic Bronze Age: The application of an ocean voyage tool and boat performance data for comparing direct open water crossings with sheltered coastal routes.

PloS one·2025
Same author

The Impact of Genetic Surfing on Neutral Genomic Diversity.

Molecular biology and evolution·2022
Same author

The role of spatial structure in multi-deme models of evolutionary rescue.

Journal of evolutionary biology·2022
Same author

Gene surfing of underdominant alleles promotes formation of hybrid zones.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2022
Same author

Establishment of Locally Adapted Mutations Under Divergent Selection.

Genetics·2018
Same journal

Quantitative genetics of lifetime growth curves in a lizard.

Evolution; international journal of organic evolution·2026
Same journal

Accounting for recombination rate variation improves inference of barrier loci and reveals the role of both natural and sexual selection in an incipient bird radiation.

Evolution; international journal of organic evolution·2026
Same journal

Linking fluvial barriers and habitat specialization in the evolution of microendemism in riverine fishes.

Evolution; international journal of organic evolution·2026
Same journal

Mutation rate variation as the neutral byproduct of developmental and life history diversification.

Evolution; international journal of organic evolution·2026
Same journal

Superorganismal Anisogamy: A Comparative Test of an Extended Theory.

Evolution; international journal of organic evolution·2026
Same journal

The role of microbial resource mutualists in plant adaptation to abiotic environments.

Evolution; international journal of organic evolution·2026
See all related articles

Related Experiment Video

Updated: Dec 18, 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

1.3K

When does gene flow facilitate evolutionary rescue?

Matteo Tomasini1,2,3,4, Stephan Peischl1,3

  • 1Interfaculty Bioinformatics Unit, University of Bern, Bern, 3012, Switzerland.

Evolution; International Journal of Organic Evolution
|June 17, 2020
PubMed
Summary
This summary is machine-generated.

Gene flow can aid evolutionary rescue in structured populations, especially at intermediate migration rates. This research identifies conditions where gene flow promotes survival rather than hindering adaptation.

Keywords:
Evolutionary rescuegene flowtwo-deme model

More Related Videos

Primordial Germ Cell Transplantation for CRISPR/Cas9-based Leapfrogging in Xenopus
05:34

Primordial Germ Cell Transplantation for CRISPR/Cas9-based Leapfrogging in Xenopus

Published on: February 1, 2018

8.6K
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

4.1K

Related Experiment Videos

Last Updated: Dec 18, 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

1.3K
Primordial Germ Cell Transplantation for CRISPR/Cas9-based Leapfrogging in Xenopus
05:34

Primordial Germ Cell Transplantation for CRISPR/Cas9-based Leapfrogging in Xenopus

Published on: February 1, 2018

8.6K
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

4.1K

Area of Science:

  • Ecology and Evolutionary Biology
  • Population Genetics
  • Mathematical Biology

Background:

  • Gene flow's impact on evolutionary rescue in structured habitats is a key area of study.
  • Theoretical models and experiments suggest intermediate migration rates can maximize rescue probability in deteriorating environments.
  • The role of gene flow in facilitating adaptation contrasts with traditional views of it hindering local adaptation.

Purpose of the Study:

  • To identify conditions under which gene flow facilitates evolutionary rescue.
  • To resolve the apparent conflict between gene flow aiding survival and hindering local adaptation.
  • To develop a tractable model for evolutionary rescue in a two-deme system with gene flow.

Main Methods:

  • Development of a simple, analytically tractable mathematical model.
  • Simulation of evolutionary rescue in a two-deme population structure with varying gene flow.
  • Investigation of asymmetries in gene flow, carrying capacities, density regulation, and local growth rates.

Main Results:

  • A simple condition for when migration facilitates evolutionary rescue has been identified.
  • Intermediate migration rates were shown to be crucial for maximizing rescue probability.
  • Asymmetries in gene flow and carrying capacities, along with density regulation, influence rescue outcomes.

Conclusions:

  • Gene flow can be a critical factor promoting the survival of populations facing environmental change.
  • Understanding the conditions that enable gene flow to facilitate evolutionary rescue is essential for conservation biology.
  • The study provides a theoretical framework for predicting population persistence under environmental stress.