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

Genetics of Speciation02:16

Genetics of Speciation

23.0K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
23.0K
Gene Flow02:39

Gene Flow

38.7K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
38.7K
Speciation Rates01:07

Speciation Rates

23.3K
Overview
23.3K
Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

7.2K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
7.2K
Diversity of Protists III01:27

Diversity of Protists III

1.8K
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
1.8K
Diversity of Protists IV01:27

Diversity of Protists IV

1.9K
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Effectiveness of Bictegravir/Emtricitabine/Tenofovir Alafenamide in Virologically Suppressed People with HIV on Any Antiretroviral Therapy Regimen: The Retrospective ESSENTIAL Study.

Infectious diseases and therapy·2026
Same author

A real-world implementation study of a TDM-guided dalbavancin model for bone and joint infections (101 Dalbatians).

JAC-antimicrobial resistance·2026
Same author

Rethinking temperate coral restoration beyond tropical paradigms.

Nature ecology & evolution·2026
Same author

Defining Success and Failure In Prosthetic Joint Infections: A Meta-epidemiologic Study Toward A Core Outcome Set.

Open forum infectious diseases·2026
Same author

Methods to estimate marine functional connectivity: A primer.

Ecological applications : a publication of the Ecological Society of America·2026
Same author

Blood pressure control in people with HIV and established atherosclerotic cardiovascular disease: a real-world descriptive analysis.

AIDS (London, England)·2026

Related Experiment Video

Updated: Mar 16, 2026

In Situ Hybridization Techniques for Paraffin-Embedded Adult Coral Samples
07:24

In Situ Hybridization Techniques for Paraffin-Embedded Adult Coral Samples

Published on: August 31, 2018

7.7K

Limited Genetic Connectivity between Gorgonian Morphotypes along a Depth Gradient.

Federica Costantini1, Andrea Gori2,3, Pablo Lopez-González4

  • 1Dipartimento di Scienze Biologiche, Geologiche ed Ambientali (BiGeA) & Centro Interdipartimentale di Ricerca per le Scienze Ambientali (CIRSA), University of Bologna, CoNISMa, Via S. Alberto 163, I-48123, Ravenna, Italy.

Plos One
|August 5, 2016
PubMed
Summary
This summary is machine-generated.

Deep and shallow gorgonian populations in the Mediterranean show limited gene flow, explaining their distinct morphologies. Shallow populations likely recover from mortality events via local larval supply, not deep-water refugia.

More Related Videos

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks
09:49

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks

Published on: September 25, 2021

4.9K
Genotyping of Sea Anemone during Early Development
07:04

Genotyping of Sea Anemone during Early Development

Published on: May 13, 2019

6.1K

Related Experiment Videos

Last Updated: Mar 16, 2026

In Situ Hybridization Techniques for Paraffin-Embedded Adult Coral Samples
07:24

In Situ Hybridization Techniques for Paraffin-Embedded Adult Coral Samples

Published on: August 31, 2018

7.7K
Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks
09:49

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks

Published on: September 25, 2021

4.9K
Genotyping of Sea Anemone during Early Development
07:04

Genotyping of Sea Anemone during Early Development

Published on: May 13, 2019

6.1K

Area of Science:

  • Marine Biology
  • Ecology
  • Genetics

Background:

  • Gorgonian species exhibit significant morphological variation influenced by environmental factors like depth.
  • In temperate seas, the hypothesis of deep coral reefs acting as reproductive refugia for shallow populations is less established.
  • Eunicella singularis, a key ecosystem engineer in the Mediterranean, displays depth-related morphotypes but shares mitochondrial DNA haplotypes.

Purpose of the Study:

  • To investigate the genetic structure of Eunicella singularis populations across horizontal and bathymetric gradients.
  • To understand the relationship between genetic connectivity, morphological variability, and depth in E. singularis.
  • To assess the potential for deep populations to act as refugia for shallow populations.

Main Methods:

  • Microsatellite and ITS1 sequence analyses were employed to assess population genetic structure.
  • Sampling covered a bathymetric range from 10 m to 100 m in the Northwestern Mediterranean Sea.
  • Genetic data were analyzed to detect gene flow patterns between shallow and deep populations.

Main Results:

  • Restricted gene flow was observed between E. singularis morphotypes at 30-40 m depth.
  • No significant genetic structuring was found among shallow water populations within a 10 km range.
  • A genetic discontinuity between shallow and deep populations was identified, correlating with observed morphological differences.

Conclusions:

  • The break in gene flow between shallow and deep E. singularis populations explains their distinct morphologies.
  • Limited vertical connectivity suggests that deep populations do not serve as reproductive refugia for E. singularis.
  • Shallow population recovery after mass mortality events is likely driven by local larval dispersal from adjacent shallow populations.