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

465
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,...
465
Mate Choice01:20

Mate Choice

11.5K
Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
11.5K
Types of Selection01:46

Types of Selection

43.8K
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...
43.8K
Hardy-Weinberg Principle01:49

Hardy-Weinberg Principle

75.9K
Diploid organisms have two alleles of each gene, one from each parent, in their somatic cells. Therefore, each individual contributes two alleles to the gene pool of the population. The gene pool of a population is the sum of every allele of all genes within that population and has some degree of variation. Genetic variation is typically expressed as a relative frequency, which is the percentage of the total population that has a given allele, genotype or phenotype.
75.9K
Genetic Drift03:33

Genetic Drift

42.8K
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.
42.8K
Gene Flow02:39

Gene Flow

37.4K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
37.4K

You might also read

Related Articles

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

Sort by
Same author

Correction: Asymmetrical diversification of the receptor-ligand interaction controlling self-incompatibility in Arabidopsis.

eLife·2026
Same author

Autopolyploidy exacerbates dominance masking under negative frequency-dependent selection: evidence from sporophytic self-incompatibility in Arabidopsis arenosa and Arabidopsis lyrata.

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

Dominance modifiers at the Arabidopsis self-incompatibility locus retain proto-miRNA features and act through non-canonical pathways.

PLoS genetics·2026
Same author

Diverging <i>Arabidopsis</i> populations quickly accumulate pollen-acting genetic incompatibilities.

Evolution letters·2025
Same author

Pangenomic context reveals the extent of intraspecific plant NLR evolution.

Cell host & microbe·2025
Same author

The evolutionary history and functional specialization of microRNA genes in Arabidopsis halleri and A. lyrata.

The Plant cell·2025

Related Experiment Video

Updated: Jan 12, 2026

Determination of the Mating Efficiency of Haploids in Saccharomyces cerevisiae
05:39

Determination of the Mating Efficiency of Haploids in Saccharomyces cerevisiae

Published on: December 2, 2022

3.1K

Evolution: Disassortative mating going nuts.

Adrian Contreras-Garrido1, Vincent Castric1

  • 1Université Lille, CNRS, UMR 8198 - Evo-Eco-Paleo, F-59000 Lille, France.

Current Biology : CB
|November 4, 2025
PubMed
Summary

Dioecy, where male and female flowers are on separate plants, promotes outcrossing. New studies reveal diverse genetic systems controlling this trait in Juglandaceae (walnut) trees.

Area of Science:

  • * Evolutionary biology
  • * Plant genetics
  • * Reproductive biology

Background:

  • * Dioecy is a reproductive strategy that enforces outcrossing, preventing self-fertilization.
  • * The genetic control of dioecy is diverse and has been extensively studied in various plant families.
  • * Juglandaceae, the walnut family, presents an interesting case for studying the evolution of dioecy due to its diverse species.

Purpose of the Study:

  • * To investigate the genetic basis of dioecy in Juglandaceae trees.
  • * To uncover the diversity of genetic systems controlling the male and female flower maturation timing in this family.
  • * To understand the evolutionary mechanisms driving the development of dioecy in walnut trees.

Main Methods:

  • * Comparative genomics analysis across different Juglandaceae species.

More Related Videos

Assessing Differences in Sperm Competitive Ability in Drosophila
09:34

Assessing Differences in Sperm Competitive Ability in Drosophila

Published on: August 22, 2013

15.0K
Using the FishSim Animation Toolchain to Investigate Fish Behavior: A Case Study on Mate-Choice Copying In Sailfin Mollies
10:50

Using the FishSim Animation Toolchain to Investigate Fish Behavior: A Case Study on Mate-Choice Copying In Sailfin Mollies

Published on: November 8, 2018

11.5K

Related Experiment Videos

Last Updated: Jan 12, 2026

Determination of the Mating Efficiency of Haploids in Saccharomyces cerevisiae
05:39

Determination of the Mating Efficiency of Haploids in Saccharomyces cerevisiae

Published on: December 2, 2022

3.1K
Assessing Differences in Sperm Competitive Ability in Drosophila
09:34

Assessing Differences in Sperm Competitive Ability in Drosophila

Published on: August 22, 2013

15.0K
Using the FishSim Animation Toolchain to Investigate Fish Behavior: A Case Study on Mate-Choice Copying In Sailfin Mollies
10:50

Using the FishSim Animation Toolchain to Investigate Fish Behavior: A Case Study on Mate-Choice Copying In Sailfin Mollies

Published on: November 8, 2018

11.5K
  • * Population genetic studies to identify genes under selection related to flowering time.
  • * Phenotypic analysis of flower development and maturation in controlled crosses and natural populations.

    • Main Results:

    • * Two new studies reveal significant genetic diversity in the control of dioecy within the Juglandaceae family.
    • * The studies identified distinct genetic pathways and systems underlying the reciprocal timing of male and female flower maturation.
    • * This diversity suggests multiple independent evolutionary origins or rapid divergence of dioecy-related genes in this family.

    Conclusions:

    • * The genetic architecture of dioecy is more complex and varied than previously thought in Juglandaceae.
    • * Understanding these diverse genetic systems provides insights into the evolution of reproductive strategies in plants.
    • * Further research can explore the specific genes and molecular mechanisms involved in these distinct dioecy pathways.