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Cited by 341

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Evidence that eukaryotes and eocyte prokaryotes are immediate relatives

Rivera, Maria C., Lake, James A.·1992·Science

Abstract

The phylogenetic origin of eukaryotes has been unclear because eukaryotic nuclear genes have diverged substantially from prokaryotic ones. The genes coding for elongation factor EF-1α were compared among various organisms. The EF-1α sequences of eukaryotes contained an 11-amino acid segment that was also found in eocytes (extremely thermophilic, sulfur-metabolizing bacteria) but that was absent in all other bacteria. The related (paralogous) genes encoding elongation factor EF-2 and initiation factor IF-2 also lacked the 11-amino acid insert. These data imply that the eocytes are the closest surviving relatives (sister taxon) of the eukaryotes.

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Metadata

Authors
Rivera, M. C., & Lake, J. A.
Venue
Science
Published
1992-07-03
Volume
257
Issue
5066
Pages
74-76
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2068793317
Cited by
341
References
3
FWCI
9.67
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Evidence that eukaryotes and eocyte prokaryotes are immediate relatives. https://app.cochat.ai/papers/10.1126/science.1621096
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Rivera, M. C., & Lake, J. A. (1992). Evidence that eukaryotes and eocyte prokaryotes are immediate relatives. Science. https://doi.org/10.1126/science.1621096

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