Origin of the eukaryotic nucleus determined by rate-invariant analysis of rRNA sequences

@article{Lake1988OriginOT,
  title={Origin of the eukaryotic nucleus determined by rate-invariant analysis of rRNA sequences},
  author={James Alan Lake},
  journal={Nature},
  year={1988},
  volume={331},
  pages={184-186}
}
  • J. Lake
  • Published 1 January 1988
  • Biology
  • Nature
The origin of the eukaryotic nucleus is difficult to reconstruct. Eukaryotic organelles (chloroplast, mitochondrion) are eii bacterial1,2 endosymbionts3,but the source of nuclear genes has been obscured by multiple nucleotide substitutions. Using evolutionary parsimony4, a newly developed rate-invariant treeing algorithm, the eukaryotic ribosomal rRNA genes are shown to have evolved from the eocytes5, a group of extremely thermophilic, sulphur-metabolizing, anucleate cells. The deepest… 

Origin of eukaryotes from within archaea, archaeal eukaryome and bursts of gene gain: eukaryogenesis just made easier?

  • E. Koonin
  • Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2015
Comparative genomic analysis clearly shows that the last eukaryotic common ancestor (LECA) possessed most of the signature complex features of modern eUKaryotic cells, in particular the mitochondria, the endomembrane system including the nucleus, an advanced cytoskeleton and the ubiquitin network.

Ribosomal RNA Phylogenies

Considering bacterial and chloroplastic c-type cytochomes together with cytochrome c, the first universal phylogenetic tree has been established, but in this tree, the Eukaryote kingdom constituted nothing but a small internal branch of the bacterial tree.

The archaebacterial origin of eukaryotes

The analyses favor a topology that supports the eocyte hypothesis rather than archaebacterial monophyly and the 3-domains tree of life, which is thought to be central to understanding the evolution of the eukaryotic cell.

Origin of eukaryotic cell nuclei by symbiosis of Archaea in Bacteria is revealed by homology-hit analysis

It is indicated that yeast ORFs related to the nucleus may share their origins with archaeal ORFs, whereas ORFs that are related toThe cytoplasm may share the origins with bacterial ORFs.

The Deep Archaeal Roots of Eukaryotes

A comprehensive set of 355 eukaryotic genes of apparent archaeal origin identified through ortholog detection and phylogenetic analysis is described and it is indicated that, for the majority of these genes, the preferred tree topology is one with the eUKaryotic branch placed outside the extant diversity of archaea.

Eukaryotic origins: String analysis of 5S ribosomal RNA sequences from some relevant organisms

The ability of the PHYLOGEN tree-forming programs to tease plausible trees from such small molecules suggests that the mode of analysis rather than the size of the molecule is often a major limitation in the reconstruction of acceptable ancient phylogenies.

Small ribosomal subunit RNA sequences, evolutionary relationships among different life forms, and mitochondrial origins

A tree was constructed from a structurally conserved area in an alignment of 83 small ribosomal subunit sequences of eukaryotic, archaebacterial, eubacterial, plastidial, and mitochondrial origin and found it capable of faith-fully reconstructing a branching topology that involved very unequal evolutionary rates.

A New Aspect to the Origin and Evolution of Eukaryotes

This paper suggests, based on the energetic aspect of genome organization, that the emergence of eukaryotes was promoted by the establishment of an efficient energy-converting organelle, such as the mitochondrion, which was acquired by the endosymbiosis of ancient α-purple photosynthetic Gram-negative eubacteria that reorganized the prokaryotic metabolism of the archaebacterial-like ancestral host cells.
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  • J. Lake
  • Biology
    Molecular biology and evolution
  • 1987
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