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

Natural Selection and Mating Preferences01:06

Natural Selection and Mating Preferences

134
The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
Females, due to their biological roles in conception, pregnancy, and nursing,...
134
Criticisms of the Evolutionary Perspective01:23

Criticisms of the Evolutionary Perspective

128
In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
128
Types of Selection01:46

Types of Selection

40.6K
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...
40.6K
Longitudinal Research02:20

Longitudinal Research

12.0K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
12.0K
Dihybrid Crosses01:18

Dihybrid Crosses

75.2K
Overview
75.2K
Frequency-dependent Selection01:21

Frequency-dependent Selection

22.1K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.1K

You might also read

Related Articles

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

Sort by
Same author

Evolutionary Mechanisms of the Emergence of the Variants of Concern of SARS-CoV-2.

Viruses·2025
Same author

Evolutionary implications of SARS-CoV-2 vaccination for the future design of vaccination strategies.

Communications medicine·2023
Same author

Measurement of selection coefficients from genomic samples of adapting populations by computer modeling.

STAR protocols·2023
Same author

A role for CD4 + helper cells in HIV control and progression.

AIDS (London, England)·2022
Same author

Experimental and mathematical insights on the interactions between poliovirus and a defective interfering genome.

PLoS pathogens·2021
Same author

An evolution-based high-fidelity method of epistasis measurement: Theory and application to influenza.

PLoS pathogens·2021

Related Experiment Video

Updated: Jul 20, 2025

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern
04:10

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

6.1K

Long-range linkage effects in adapting sexual populations.

Igor M Rouzine1

  • 1Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Saint-Petersburg, Russia, 194223. igor.rouzine@iephb.ru.

Scientific Reports
|August 1, 2023
PubMed
Summary

In sexual populations, genes far apart on a genome do not evolve independently. Linkage effects persist due to clonal interference and genetic background effects, impacting allele dynamics.

More Related Videos

A Method to Test the Effect of Environmental Cues on Mating Behavior in Drosophila melanogaster
08:13

A Method to Test the Effect of Environmental Cues on Mating Behavior in Drosophila melanogaster

Published on: July 17, 2017

9.2K
Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
07:25

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Published on: July 20, 2017

11.6K

Related Experiment Videos

Last Updated: Jul 20, 2025

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern
04:10

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

6.1K
A Method to Test the Effect of Environmental Cues on Mating Behavior in Drosophila melanogaster
08:13

A Method to Test the Effect of Environmental Cues on Mating Behavior in Drosophila melanogaster

Published on: July 17, 2017

9.2K
Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
07:25

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Published on: July 20, 2017

11.6K

Area of Science:

  • Evolutionary genetics
  • Population genetics
  • Genomics

Background:

  • Genes close on a genome share evolutionary fates due to linkage.
  • Recombination is thought to allow distant genes to evolve independently.
  • Previous models focused on mutation-driven evolution, not pre-existing variation.

Purpose of the Study:

  • To investigate if distant genes in a long genome evolve independently when relying on pre-existing genetic variation.
  • To explore the impact of linkage effects beyond simple proximity or recombination rates.

Main Methods:

  • A haploid population model with multiple loci and fixed selection coefficients was simulated using a Monte Carlo algorithm.
  • The simulation focused on the dynamics of beneficial alleles with small initial frequencies.
  • Analysis examined linkage effects, allele extinction, and substitution rates across loci.

Main Results:

  • Significant linkage effects were observed even for distant loci, decreasing neither with distance nor recombination.
  • Clonal interference led to the extinction of beneficial alleles at a substantial fraction of loci.
  • Genetic background effects caused wide variation in substitution rates, with some loci evolving much faster than predicted by single-locus models.

Conclusions:

  • Far-situated genomic regions in sexual populations do not evolve as independent units.
  • Linkage and background effects disrupt independent evolution, with implications for understanding genome evolution.
  • Findings may offer insights into the rapid evolution of pathogens like SARS-CoV-2 variants.