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

The Evidence for Evolution02:55

The Evidence for Evolution

48.2K
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.
48.2K
Convergent Evolution01:54

Convergent Evolution

32.9K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
32.9K
Eukaryotic Evolution01:24

Eukaryotic Evolution

41.4K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
41.4K
Synteny and Evolution02:31

Synteny and Evolution

3.8K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.8K
Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

9.1K
While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
9.1K
Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

3.4K
3.4K

You might also read

Related Articles

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

Sort by
Same author

Seasonal differences and potential biological drivers of the methane paradox in two peri-Alpine lakes.

Limnology and oceanography letters·2026
Same author

Color and Near-Infrared Reflectance Covary in Distinct Ways Across Taxa.

Ecology and evolution·2026
Same author

Investigating the core microbiome concept: Daphnia as a case study.

Environmental microbiome·2025
Same author

Ancient origin of an urban underground mosquito.

Science (New York, N.Y.)·2025
Same author

Rapid temporal adaptation structures tolerance to toxic cyanobacteria in a natural population of the water flea <i>Daphnia</i>.

Evolution letters·2025
Same author

Artificial light at night intensifies effects of a parasitic flatworm on the water flea <i>Daphnia magna</i>.

Biology letters·2025

Related Experiment Video

Updated: Feb 2, 2026

Molecular Evolution of the Tre Recombinase
12:02

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

10.1K

Evolution at two time frames: Polymorphisms from an ancient singular divergence event fuel contemporary parallel

Steven M Van Belleghem1,2,3,4, Carl Vangestel1,2, Katrien De Wolf1,2

  • 1Directorate Taxonomy and Phylogeny, Royal Belgian Institute of Natural Sciences, Brussels, Belgium.

Plos Genetics
|November 14, 2018
PubMed
Summary

Rapid parallel evolution in saltmarsh beetles is fueled by ancient genetic variation. Past divergence followed by admixture allows rapid adaptation to changing environments, even from small population sizes.

More Related Videos

A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
12:03

A Method for Tracking the Time Evolution of Steady-State Evoked Potentials

Published on: May 25, 2019

8.9K
Evolution of Staircase Structures in Diffusive Convection
07:28

Evolution of Staircase Structures in Diffusive Convection

Published on: September 5, 2018

6.9K

Related Experiment Videos

Last Updated: Feb 2, 2026

Molecular Evolution of the Tre Recombinase
12:02

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

10.1K
A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
12:03

A Method for Tracking the Time Evolution of Steady-State Evoked Potentials

Published on: May 25, 2019

8.9K
Evolution of Staircase Structures in Diffusive Convection
07:28

Evolution of Staircase Structures in Diffusive Convection

Published on: September 5, 2018

6.9K

Area of Science:

  • Evolutionary biology
  • Population genetics
  • Ecological adaptation

Background:

  • Rapid parallel evolution occurs when populations adapt quickly to environmental changes.
  • Standing genetic variation is a key driver of rapid adaptation, but its origins are often unclear.
  • The saltmarsh beetle (Pogonus chalceus) exhibits distinct short-winged 'tidal' and long-winged 'seasonal' ecotypes, repeatedly evolving along the Atlantic coast.

Purpose of the Study:

  • To investigate the genomic basis of rapid parallel evolution in Pogonus chalceus.
  • To understand the source and role of standing genetic variation in ecotype divergence.
  • To explore the evolutionary history and mechanisms driving repeated adaptation.

Main Methods:

  • Genomic variation analysis across the distribution of Pogonus chalceus.
  • Identification of alleles under selection in different ecotypes.
  • Investigation of divergence times and admixture patterns.

Main Results:

  • Alleles selected in the tidal ecotype evolved during a singular, ancient (190 Kya) divergence event, likely in allopatry.
  • These ancient, differentially selected alleles are now polymorphic in most populations due to admixture.
  • Fast evolution of one ecotype from a small number of individuals of another is possible due to this genetic structure.

Conclusions:

  • Fast parallel ecological divergence can result from past divergence followed by selection on ancient alleles after admixture.
  • Ancient allopatric divergence events are crucial for contemporary rapid evolution under gene flow.
  • Glacial cycles may have driven periods of isolation, facilitating the accumulation of genetic variation for future adaptation.