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

Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

7.9K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
7.9K
The Evidence for Evolution02:55

The Evidence for Evolution

48.9K
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.
48.9K
Cis-regulatory Sequences02:02

Cis-regulatory Sequences

12.0K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
12.0K
Speciation Rates01:07

Speciation Rates

23.1K
Overview
23.1K
Convergent Evolution01:54

Convergent Evolution

33.6K
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.
33.6K
Lampbrush Chromosomes01:51

Lampbrush Chromosomes

8.8K
In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
8.8K

You might also read

Related Articles

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

Sort by
Same author

Genome-scale molecular systematics of Madagascar's occipital-lobed chameleons reveals polyphyly and mito-nuclear discordances.

Molecular phylogenetics and evolution·2026
Same author

<b>A new microhylid frog species of the genus <i>Platypelis</i> from phytotelmata of <i>Pandanus</i> screw pines in the Sorata massif, northeastern Madagascar</b>.

Zootaxa·2026
Same author

<b>Revisiting the systematics of the <i>Ranitomeya uakarii</i> complex (Anura: Dendrobatidae) with the description of a new species from the Fitzcarrald Arch of Peru and Brazil</b>.

Zootaxa·2026
Same author

<b>Further complicated histories: a revision of the <i>Ameerega bassleri</i> species group (Anura: Dendrobatidae) and a new species from the Cordillera Escalera of Peru</b>.

Zootaxa·2026
Same author

Transcriptomic genotyping elucidates the population structure and demographic history of the endangered poison frog Oophaga vicentei (Anura: Dendrobatidae).

BMC genomics·2026
Same author

Caspofungin-Based Red-Emissive Probes for Fluorescent Imaging of Pathogenic Fungi.

JACS Au·2026

Related Experiment Video

Updated: Mar 2, 2026

Author Spotlight: Effective Rapid Blood Perfusion in Xenopus
05:03

Author Spotlight: Effective Rapid Blood Perfusion in Xenopus

Published on: May 16, 2023

5.5K

Transcriptomic and macroevolutionary evidence for phenotypic uncoupling between frog life history phases.

Katharina C Wollenberg Valero1, Joan Garcia-Porta2, Ariel Rodríguez3

  • 1Department of Natural Sciences, College of Science, Engineering and Mathematics, Bethune-Cookman University, Daytona Beach, Florida 32114, USA.

Nature Communications
|May 16, 2017
PubMed
Summary

Frog evolution shows distinct tadpole and adult phases evolve independently. Gene expression patterns reveal this uncoupling, impacting macroevolutionary studies of anurans.

More Related Videos

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians
04:37

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians

Published on: May 12, 2019

16.4K
Cell-Lineage Guided Mass Spectrometry Proteomics in the Developing Frog Embryo
09:18

Cell-Lineage Guided Mass Spectrometry Proteomics in the Developing Frog Embryo

Published on: April 21, 2022

2.2K

Related Experiment Videos

Last Updated: Mar 2, 2026

Author Spotlight: Effective Rapid Blood Perfusion in Xenopus
05:03

Author Spotlight: Effective Rapid Blood Perfusion in Xenopus

Published on: May 16, 2023

5.5K
Reproductive Techniques for Ovarian Monitoring and Control in Amphibians
04:37

Reproductive Techniques for Ovarian Monitoring and Control in Amphibians

Published on: May 12, 2019

16.4K
Cell-Lineage Guided Mass Spectrometry Proteomics in the Developing Frog Embryo
09:18

Cell-Lineage Guided Mass Spectrometry Proteomics in the Developing Frog Embryo

Published on: April 21, 2022

2.2K

Area of Science:

  • Evolutionary biology
  • Developmental biology
  • Amphibian research

Background:

  • Anuran amphibians exhibit significant morphological changes between tadpole and adult stages.
  • The evolutionary implications of these distinct life-history phases are not well understood.
  • Understanding phase-specific evolution is crucial for amphibian macroevolutionary insights.

Purpose of the Study:

  • To investigate the coupling versus uncoupling of phenotypic evolution between tadpole and adult anuran life-history phases.
  • To explore the role of gene expression in morphological development across these phases.
  • To test evolutionary predictions using gene expression and morphological data in frogs.

Main Methods:

  • Comparative gene expression analysis in Xenopus laevis and Mantidactylus betsileanus.
  • Phylogenetic analysis of morphological evolution in Madagascan mantellid frogs.
  • Integration of gene expression data with macroevolutionary patterns.

Main Results:

  • Genes involved in morphological development show highly phase-specific expression patterns.
  • Evidence suggests uncoupled phenotypic evolution between tadpole and adult anuran stages.
  • Mantellid frogs exhibit uncoupled evolutionary rates across life-history phases during adaptive radiation.

Conclusions:

  • Phenotypic evolution in anurans is largely uncoupled between tadpole and adult phases.
  • Phase-specific gene expression underlies the independent evolution of life-history stages.
  • This uncoupling is a significant factor in amphibian macroevolution.