Linked from

The 35 pages that link to Archaea, each with the reason it gives.

• EukaryoteCompared with: Eukaryotes share a closer evolutionary relationship with archaea than with bacteria.

• PeptidoglycanCompared with: Their walls use other materials, showing peptidoglycan is not universal among prokaryotes.

• CyanobacteriaCompared with: Cyanobacteria belong to Bacteria, not Archaea, despite both groups containing microscopic cells.

• BacteriaCompared with: Archaea also lack nuclei, but they are not bacteria.

• 16S ribosomal RNARelated: Comparisons of small-subunit ribosomal RNA helped establish archaea as a separate domain.

• MethanogenesisNarrower topic: Methanogens belong to this domain, not to the bacteria.

• Bacterial taxonomyCompared with: Early molecular classifications revealed that some organisms once called bacteria belong to a separate domain.

• MicroorganismBroader topic: Their small cells resemble bacteria, but their biology defines a separate domain of life.

• ProkaryoteBroader topic: Archaea are prokaryotes, but their molecular features distinguish them from bacteria.

• CellBroader topic: Archaea demonstrate that prokaryotic cells include lineages separate from bacteria.

• University of Illinois Urbana-ChampaignBroader topic: Woese’s Illinois research established Archaea as a separate domain of life.

• Carl WoeseBroader topic: Recognizing Archaea as a separate lineage was the central result of Woese’s comparisons.

• EukaryogenesisNarrower topic: Genomic evidence places the host lineage of eukaryotes within or close to archaea.

• Last universal common ancestorRelated: Archaeal traits and genes inform debates about LUCA's biology and the origins of eukaryotes.

• ThermophileNarrower topic: Numerous thermophiles belong to archaeal lineages adapted to hot habitats.

• Asgard archaeaNarrower topic: Asgard archaea are a group within this domain of life.

• Eukaryotic cellRelated: Eukaryotes share deep evolutionary affinities with archaeal lineages.

• Three-domain systemBroader topic: Its recognition as a separate domain is the system’s defining departure from older classifications.

• Bacterial phylumCompared with: Archaeal phyla belong to a separate domain, despite similar prokaryotic cell organization.

• Prokaryotic cellBroader topic: Archaea share the absence of a nucleus but differ from bacteria in fundamental ways.

• Thermus aquaticusCompared with: Thermostable enzymes from archaea, including Pfu polymerase, provide alternatives to Taq.

• ActinomycetotaCompared with: Despite sometimes similar habitats, archaea are evolutionarily separate from this bacterial phylum.

• Bacterial cell structureCompared with: Archaea resemble bacteria in cellular organization but differ in key molecular structures.

• EukaryotaRelated: Genomic evidence places eukaryotes’ host ancestry within or close to archaeal lineages.

• SulfolobusNarrower topic: Sulfolobus belongs to this domain, whose unusual cell biology frames its defining traits.

• ThermoproteotaNarrower topic: Thermoproteota belongs to this domain, whose molecular traits distinguish it from Bacteria.

• HalobacteriumNarrower topic: Halobacterium belongs to Archaea, despite its historical name suggesting a bacterium.

• MethanobacteriatiNarrower topic: Methanobacteriati belong to this domain, not to Bacteria.

• MethanobacteriumNarrower topic: Methanobacterium belongs to this domain, not to the bacteria.

• Microbiological phenomenaBroader topic: Archaea participate in distinctive processes, including methane production and extreme-environment metabolism.

• NanobdellatiNarrower topic: Nanobdellati belongs to this domain, whose membrane chemistry and molecular machinery differ from bacteria.

• NitrososphaeriaNarrower topic: Nitrososphaeria belongs to this domain, not to Bacteria.

• ParakaryonNarrower topic: Comparing the two prokaryotic domains helps frame claims about Parakaryon’s unusual traits.

• ThermoplasmaNarrower topic: Thermoplasma belongs to this domain, despite its bacterial-like shape and lifestyle.

• ThermoproteatiNarrower topic: Thermoproteati is one major lineage within this domain.