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

Diversity of Protists III01:27

Diversity of Protists III

2.0K
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,...
2.0K
Diversity of Protists II01:27

Diversity of Protists II

2.2K
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
2.2K
Phylogeny01:23

Phylogeny

64.6K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
64.6K
Phylogenetic Trees03:21

Phylogenetic Trees

51.9K
Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
51.9K
Phylogenetic Trees03:21

Phylogenetic Trees

6.8K
6.8K
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

You might also read

Related Articles

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

Sort by
Same author

A coral among stars: A new octocoral family (Anthozoa, Octocorallia, Malacalcyonacea) from seamounts in the tropical eastern Pacific.

ZooKeys·2026
Same author

<b>Corrected identity of the alien sea anemone <i>Cereus pedunculatus</i> (Pennant, 1777) (Actiniaria: Sagartiidae) in South Africa</b>.

Zootaxa·2026
Same author

Siphonophore genome structure and the evolution of functional specialization.

PloS one·2026
Same author

A Redescription and Characterization of the Transcriptome of the Sea Anemone <i>Edwardsia elegans</i> (Verrill).

The Biological bulletin·2026
Same author

"A chromosome-level reference genome for the colonial marine hydrozoan Podocoryna americana".

G3 (Bethesda, Md.)·2026
Same author

The invasive soft coral <i>Xenia umbellata</i> has been confirmed in Cuban waters.

bioRxiv : the preprint server for biology·2026

Related Experiment Video

Updated: Mar 31, 2026

Fluorescent In Situ Hybridization and 5-Ethynyl-2'-Deoxyuridine Labeling for Stem-Like Cells in the Hydrozoan Jellyfish Cladonema pacificum
08:44

Fluorescent In Situ Hybridization and 5-Ethynyl-2'-Deoxyuridine Labeling for Stem-Like Cells in the Hydrozoan Jellyfish Cladonema pacificum

Published on: August 3, 2022

3.6K

Phylogenomic Analyses Support Traditional Relationships within Cnidaria.

Felipe Zapata1, Freya E Goetz1, Stephen A Smith1

  • 1Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island, United States of America.

Plos One
|October 15, 2015
PubMed
Summary

This study clarifies cnidarian evolutionary history by analyzing transcriptome data from 15 new species. Findings largely support traditional views, providing a framework for understanding ancient animal radiations.

More Related Videos

Genotyping of Sea Anemone during Early Development
07:04

Genotyping of Sea Anemone during Early Development

Published on: May 13, 2019

6.2K
Chromatin Immunoprecipitation in the Cnidarian Model System Exaiptasia diaphana
11:48

Chromatin Immunoprecipitation in the Cnidarian Model System Exaiptasia diaphana

Published on: March 17, 2023

957

Related Experiment Videos

Last Updated: Mar 31, 2026

Fluorescent In Situ Hybridization and 5-Ethynyl-2'-Deoxyuridine Labeling for Stem-Like Cells in the Hydrozoan Jellyfish Cladonema pacificum
08:44

Fluorescent In Situ Hybridization and 5-Ethynyl-2'-Deoxyuridine Labeling for Stem-Like Cells in the Hydrozoan Jellyfish Cladonema pacificum

Published on: August 3, 2022

3.6K
Genotyping of Sea Anemone during Early Development
07:04

Genotyping of Sea Anemone during Early Development

Published on: May 13, 2019

6.2K
Chromatin Immunoprecipitation in the Cnidarian Model System Exaiptasia diaphana
11:48

Chromatin Immunoprecipitation in the Cnidarian Model System Exaiptasia diaphana

Published on: March 17, 2023

957

Area of Science:

  • * Zoology and evolutionary biology, focusing on the phylum Cnidaria.
  • * Utilizes molecular phylogenetics to resolve deep evolutionary relationships within animals.

Background:

  • * Cnidaria, sister to Bilateria, exhibits significant morphological and ecological diversity.
  • * Unclear phylogenetic relationships among cnidarian lineages hinder understanding of their evolutionary history.
  • * Contrasting phylogenetic hypotheses complicate the study of cnidarian origins.

Purpose of the Study:

  • * To resolve phylogenetic relationships among major cnidarian lineages using comprehensive genomic and transcriptomic data.
  • * To establish a robust evolutionary framework for studying the diversification of one of the earliest animal radiations.
  • * To test and refine existing hypotheses regarding cnidarian evolutionary history.

Main Methods:

  • * Phylogenomic analysis of transcriptome data from 15 newly sequenced cnidarian species.
  • * Integration of 26 publicly available cnidarian genomes and transcriptomes.
  • * Application of diverse partition schemes and molecular evolution models, including topology tests.

Main Results:

  • * Strong support for the monophyly of Medusozoa, Anthozoa, Octocorallia, and Hydrozoa.
  • * Monophyly of a clade including Staurozoa, Cubozoa, and Scyphozoa is supported.
  • * Weak support for Hexacorallia monophyly due to the uncertain placement of Ceriantharia.

Conclusions:

  • * The study refines deep cnidarian evolutionary relationships, largely corroborating traditional classifications.
  • * Provides a stable phylogenetic framework for future research into cnidarian evolution and diversification.
  • * Highlights the importance of comprehensive data and robust analytical methods in resolving ancient animal relationships.