Tag Archive for 'Eukaryogenesis'

Model of Asgard viral infection mechanisms and protein similarity with other viruses: (a) genes identified in Asgard viruses involved in infection (i), replication (ii), transcription (iii) and translation (iv); Asgard viruses are shown as different colored hexagons, Asgard hosts as different colored circles, and host transcription machinery is labeled with ovals color coded by function (see legend); (b) distribution of 35 genes (lower x axis) among Asgard viruses (y axis); filled circles indicate annotated orthologues, while white circles indicate that an orthologue was not identified. Image credit: Rambo et al., doi: 10.1038/s41564-022-01150-8.

Mysterious Asgard Archaea-Infecting Viruses Discovered

Jun 30, 2022 by News Staff

Asgard archaea are globally distributed microorganisms related to eukaryotes — complex organisms including animals, plants, fungi, and amoeba. However,...

Asgard archaeon. Scale bar - 500 nm. Image credit: Imachi et al., doi: 10.1038/s41586-019-1916-6.

Eukaryotic Cells Emerged in Anoxic Environment, New Study Suggests

Apr 27, 2022 by News Staff

Since the 1960s, many scientists have argued that the emergence of eukaryotes — cells containing a clearly defined nucleus — happened in response...