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

Eukaryotic Evolution01:24

Eukaryotic Evolution

42.6K
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...
42.6K
Overview of Archaea01:29

Overview of Archaea

1.2K
Archaea, named after the Archaean eon, represent a unique domain of life, distinct from bacteria and eukaryotes, with remarkable traits. Their cellular and molecular features, ecological adaptability, and industrial relevance highlight their importance in understanding life processes and leveraging biotechnology.Cellular and Molecular CharacteristicsA defining feature of archaea is their unique membrane composition. Archaeal membranes contain ether-linked isoprenoid lipids, which confer...
1.2K
Three-Domain System of Life01:21

Three-Domain System of Life

1.6K
Ribosomal RNA (rRNA) sequence analysis revealed three distinct groups of cells: eukaryotes, bacteria, and archaea. In 1978, Carl R. Woese proposed the concept of domains, a taxonomic level above kingdoms, to differentiate these groups. He suggested that archaea and bacteria, despite their similar appearance, represent separate domains. Domains differ in rRNA, membrane lipid structure, transfer RNA, and antibiotic sensitivity.In this classification, animals, plants, and fungi belong to the...
1.6K
Diversity of Archaea II01:24

Diversity of Archaea II

568
Archaea, one of the three domains of life, exhibit remarkable diversity and adaptability, thriving in both extreme and moderate environments. Historically, most identified archaea have been classified into two major phyla: Euryarchaeota and Crenarchaeota. However, recent molecular studies have expanded this classification to include three additional phyla: Thaumarchaeota, Nanoarchaeota, and Korarchaeota, each exhibiting unique characteristics and ecological roles.Thaumarchaeota: Mesophiles...
568
The Tree of Life - Bacteria, Archaea, Eukaryotes02:40

The Tree of Life - Bacteria, Archaea, Eukaryotes

39.8K
The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both...
39.8K
Diversity of Archaea I01:30

Diversity of Archaea I

727
Archaea, a domain of single-celled microorganisms, are classified into five major phyla based on genetic and biochemical characteristics: Euryarchaeota, Crenarchaeota, Thaumarchaeota, Korarchaeota, and Nanoarchaeota. Among these, the phylum Euryarchaeota is notable for its remarkable diversity in morphology, metabolism, and ecological adaptations.Morphological and Metabolic DiversityMembers of Euryarchaeota exhibit a variety of cellular shapes, including rods and cocci. Their metabolic pathways...
727

You might also read

Related Articles

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

Sort by
Same author

The Origin of Life in the Light of Evolution.

ArXiv·2026
Same author

Uncovering syntrophic potential from genome-resolved metagenomics of suspended and granular anaerobic digestion sludges.

FEMS microbiology ecology·2026
Same author

New lineages provide insights into the convergent evolution of extreme salt adaptation within symbiotic Archaea.

Molecular biology and evolution·2026
Same author

Author Correction: Unbinned contigs expand known diversity in the global microbiome.

Nature microbiology·2026
Same author

<i>Methanonatronarchaeia</i> are deep-branching ancestrally methanogenic archaea distant from <i>Halobacteria</i>.

ISME communications·2026
Same author

Nucleomorph phylogenomics suggests a deep and ancient origin of cryptophyte plastids within Rhodophyta.

The New phytologist·2026

Related Experiment Video

Updated: Feb 19, 2026

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
08:57

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

16.6K

Archaea and the origin of eukaryotes.

Laura Eme1, Anja Spang1, Jonathan Lombard1

  • 1Department of Cell and Molecular Biology, Science for Life Laboratory, Uppsala University, Box 596, Uppsala SE-75123, Sweden.

Nature Reviews. Microbiology
|November 11, 2017
PubMed
Summary

The discovery of Archaea revolutionized evolutionary biology, revealing three domains of life: Bacteria, Archaea, and Eukaryotes. Recent findings clarify the complex evolutionary origins of eukaryotes and their relationship with Archaea.

More Related Videos

Examining Proteasome Assembly with Recombinant Archaeal Proteasomes and Nondenaturing PAGE: The Case for a Combined Approach
09:57

Examining Proteasome Assembly with Recombinant Archaeal Proteasomes and Nondenaturing PAGE: The Case for a Combined Approach

Published on: December 17, 2016

7.0K
Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.5K

Related Experiment Videos

Last Updated: Feb 19, 2026

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
08:57

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

16.6K
Examining Proteasome Assembly with Recombinant Archaeal Proteasomes and Nondenaturing PAGE: The Case for a Combined Approach
09:57

Examining Proteasome Assembly with Recombinant Archaeal Proteasomes and Nondenaturing PAGE: The Case for a Combined Approach

Published on: December 17, 2016

7.0K
Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

1.5K

Area of Science:

  • Evolutionary Biology
  • Microbiology
  • Genomics

Background:

  • The discovery of Archaea in 1977 redefined life's classification into three domains: Bacteria, Archaea, and Eukaryotes.
  • Eukaryotic cells exhibit a mix of archaeal, bacterial, and unique features, with mitochondria originating from alphaproteobacteria.
  • The evolutionary link between eukaryotes and Archaea remains a key area of research.

Purpose of the Study:

  • To review the historical shifts in understanding the tree of life.
  • To examine how new archaeal lineages impact our view of eukaryotic origins.
  • To discuss the evolutionary transition to the first eukaryotic common ancestor.

Main Methods:

  • Review of historical scientific literature.
  • Analysis of molecular phylogenetic studies.
  • Examination of genomic data from diverse archaeal lineages.

Main Results:

  • The discovery of diverse archaeal lineages has significantly refined evolutionary relationships.
  • Evidence supports a close evolutionary relationship between Eukaryotes and Archaea.
  • Understanding eukaryogenesis benefits from integrating archaeal and bacterial evolutionary insights.

Conclusions:

  • The Archaea domain is crucial for understanding the origin of eukaryotes.
  • Ongoing research continues to shape the tree of life and eukaryogenesis models.
  • The evolutionary journey from early life to the first eukaryotes is increasingly understood.