three-domain system of Carl Woese
E728822
The three-domain system of Carl Woese is a biological classification scheme that divides all life into the domains Bacteria, Archaea, and Eukarya based on molecular and genetic differences, particularly in ribosomal RNA.
All labels observed (1)
| Label | Occurrences |
|---|---|
| three-domain system of Carl Woese canonical | 1 |
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
biological classification system
ⓘ
domain-level taxonomy ⓘ |
| alsoKnownAs |
Woese three-domain system
NERFINISHED
ⓘ
three-domain system NERFINISHED ⓘ |
| appliesTo | all cellular life ⓘ |
| basedOn |
genetic differences
ⓘ
molecular differences ⓘ ribosomal RNA sequence comparisons ⓘ |
| centralMolecule |
16S rRNA
ⓘ
18S rRNA ⓘ |
| challenges | traditional prokaryote-eukaryote dichotomy ⓘ |
| classificationCriterion |
conserved genetic features
ⓘ
ribosomal RNA sequence similarity ⓘ |
| contrastsWith |
five-kingdom system
ⓘ
two-empire system ⓘ |
| dateProposed | late 1970s ⓘ |
| dividesLifeInto |
Archaea
NERFINISHED
ⓘ
Bacteria NERFINISHED ⓘ Eukarya NERFINISHED ⓘ |
| doesNotInclude | viruses as a separate domain ⓘ |
| domainRankAbove |
kingdom
ⓘ
phylum ⓘ |
| emphasizes |
evolutionary relationships
ⓘ
phylogenetic classification ⓘ |
| field |
evolutionary biology
ⓘ
microbial systematics ⓘ |
| focusesOn | prokaryote diversity ⓘ |
| higherRankThan | kingdom ⓘ |
| historicalContext | development of molecular systematics in the 20th century ⓘ |
| influenced |
modern microbial taxonomy
ⓘ
molecular phylogenetics ⓘ |
| introducedConcept | domain as highest taxonomic rank ⓘ |
| popularizedIn | 1990 ⓘ |
| proposedBy | Carl Woese NERFINISHED ⓘ |
| publishedIn | Proceedings of the National Academy of Sciences NERFINISHED ⓘ |
| recognizesDomain |
Archaea as distinct from Bacteria
ⓘ
Bacteria as distinct from Archaea ⓘ Eukarya as distinct from Archaea NERFINISHED ⓘ Eukarya as distinct from Bacteria NERFINISHED ⓘ |
| relatedTo | universal phylogenetic tree ⓘ |
| replacedConcept | Monera as a single prokaryotic kingdom ⓘ |
| supportsHypothesis | Archaea form a separate primary lineage of life ⓘ |
| supportsView | Archaea more closely related to Eukarya than to Bacteria ⓘ |
| usesMarker | small subunit ribosomal RNA ⓘ |
| usesMethod |
comparative sequence analysis
ⓘ
molecular phylogeny ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.