Meiosis and gametogenesis are among the most ancient developmental processes widespread
among eukaryotes.
The origin of sex has generally been simplified to the question of the origin of meiosis, which is known to have a single origin
among all eukaryotes [1], [2].
A similarity in appearance and conformational behavior of yeast and murine complexes indicates a conservation of Mediator structure
among eukaryotes.
Although some amoebas presumably can not have sex and divide by mitosis, others are
among the eukaryotes that can have sex — a process that can most simply be defined as ripping a genome in half and later recombining it.
Not exact matches
It also suggests that cell life could have emerged with a far greater variety of pre-cellular forms than those conventionally considered, as the new giant virus has almost no equivalent
among the three recognized domains of cellular life, namely eukaryota (or
eukaryotes), eubacteria, and archaea.
Importantly,
among those ESPs are proteins (small Ras / Arf - type GTPases) critical for
eukaryotes» ability to direct traffic amongst all those intercellular compartments.
And a team led by the Broad's Feng Zhang on 3 January 2013 indisputably first showed that CRISPR worked in
eukaryotes, which,
among other advances, opened the possibility of working on human DNA and making new medical interventions.
Contribution to the understanding of how the evolution of gene families relates to functional divergence, including the fate of duplicated genes, horizontal transfer and interspecies hybridization, as well as the characterization of the ancestral patterns of evolution
among archosaurs, and the discovery of the late acquisition of mitochondria in
eukaryotes (Gabaldón's group, Science 2014, PLoS Biology 2015, PLoS Genetics 2015, Nature 2016).
One view of the Phylogeny of Life on Earth (at the University of California at Berkeley's Museum of Paleontology) highlights the role of archeabacteria
among prokaryotes — as a separate «Archaea domain» apart from Eubacteria — in the development of cellular life with nuclei (
eukaryotes).