Archaeal-eubacterial mergers in the origin of Eukarya: phylogenetic classification of life - PubMed (original) (raw)
Comparative Study
. 1996 Feb 6;93(3):1071-6.
doi: 10.1073/pnas.93.3.1071.
Collaborators, Affiliations
- PMID: 8577716
- PMCID: PMC40032
- DOI: 10.1073/pnas.93.3.1071
Comparative Study
Archaeal-eubacterial mergers in the origin of Eukarya: phylogenetic classification of life
L Margulis. Proc Natl Acad Sci U S A. 1996.
Abstract
A symbiosis-based phylogeny leads to a consistent, useful classification system for all life. "Kingdoms" and "Domains" are replaced by biological names for the most inclusive taxa: Prokarya (bacteria) and Eukarya (symbiosis-derived nucleated organisms). The earliest Eukarya, anaerobic mastigotes, hypothetically originated from permanent whole-cell fusion between members of Archaea (e.g., Thermoplasma-like organisms) and of Eubacteria (e.g., Spirochaeta-like organisms). Molecular biology, life-history, and fossil record evidence support the reunification of bacteria as Prokarya while subdividing Eukarya into uniquely defined subtaxa: Protoctista, Animalia, Fungi, and Plantae.
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