Biology 2581B Chapter Notes - Chapter 2: Lokiarchaeota, Ras Superfamily, Metagenomics
29 Mar 2017
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Document Summary
Prokaryotic lineage that is more closely related to eukaryotes than any yet sampled and that shares with eukaryotes several genes previously thought to define aspects of eukaryotic biology. Lokiarchaeum genome contains more eukaryotic signature genes than do other prokaryotes, including genes encoding actin proteins, components of a primordial vesicle-trafficking complex, a ubiquitin-modifier system and a diverse array of small. Strong evidence that phylogenetics can be used to infer ancient relationships and, in combination with single-cell and metagenomic sequencing, provides a powerful toolkit for testing ideas about the origins of the component parts of eukaryotic cells. Investigate the origins of the many bacterial genes that comprise a major component of eukaryotic genomes. More-closely related archaeal relatives of eukaryotes will soon be discovered. Mutually beneficial relationship in which one organism lives inside another. Bacterium is envisaged to have provided its host cell with additional energy. Conventional mito-late models, eukaryotes emerged before the mitochondrial endosymbiont was acquired.
