Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Gene Evolution - Fast or Slow?

Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...

Gene Evolution - Fast or Slow?

Gene Evolution - Fast or Slow?

Genetic Drift

Genetic Drift

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.

Mutation, Gene Flow, and Genetic Drift

Mutation, Gene Flow, and Genetic Drift

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).

Genome Size and the Evolution of New Genes

Genome Size and the Evolution of New Genes

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.

Genome Size and the Evolution of New Genes

Genome Size and the Evolution of New Genes

You might also read

Related Articles

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

Sort by

Same author

Effects of cardiac rehabilitation on atrial fibrillation recurrence, mortality, hospitalization, and exercise capacity: a systematic review and meta-analysis.

PeerJ·2026

Same author

Activation of cryptic donor splice site due to an exonic MYPN variant in congenital myopathy.

Journal of human genetics·2026

Same author

Interpreting Pulmonary Hypertension Beyond Single Cells.

Arteriosclerosis, thrombosis, and vascular biology·2026

Same author

Functional Characterization of <i>Helicoverpa armigera</i> Nicotinic Acetylcholine Receptor Subunits Targeted by <i>cis</i>- and <i>trans</i>-Configuration Piperidine Alkaloids in <i>Solenopsis</i> Fire Ant Venom.

Journal of agricultural and food chemistry·2026

Same author

Ganglioneuroblastoma associated with neurofibromatosis type 1: a case report with a systematic review.

Frontiers in oncology·2026

Same author

Distance-adaptive geometric margins for residual rotational uncertainty in single-isocenter multitarget stereotactic radiosurgery.

Physics and imaging in radiation oncology·2026

Search research articles

Related Experiment Video

Updated: Mar 19, 2026

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

Correction: Randomness in Sequence Evolution Increases over Time.

Guangyu Wang, Shixiang Sun, Zhang Zhang

|June 21, 2016

Summary

This summary is machine-generated.

This study corrects a previous article DOI. The corrected DOI is 10.1371/journal.pone.0155935.

More Related Videos

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

Measuring Microbial Mutation Rates with the Fluctuation Assay

Measuring Microbial Mutation Rates with the Fluctuation Assay

Published on: November 28, 2019

Related Experiment Videos

Last Updated: Mar 19, 2026

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli

Published on: August 18, 2023

Measuring Microbial Mutation Rates with the Fluctuation Assay

Measuring Microbial Mutation Rates with the Fluctuation Assay

Published on: November 28, 2019

Area of Science:

Bibliometrics
Scientific publishing

Context:

Correction of a previously published article DOI.
Ensuring accurate citation and discoverability of scientific literature.

Purpose:

To provide the correct Digital Object Identifier (DOI) for a specific publication.
To rectify an error in the article's metadata.

Summary:

The article DOI previously listed was incorrect.
The correct DOI for the article is now provided.

Impact:

Facilitates accurate referencing and citation tracking.
Improves the discoverability and accessibility of the scientific work.