Yet life often bounces back. In fact, in the long term, life on Earth has trended toward increasingly complex forms and ...

F. Archaea and the prokaryote-to-eukaryote transition. Microbiology and Molecular Biology Reviews 61, 456–502 (1997) Doolittle, W. F. & Bapteste, E. Pattern pluralism and the Tree of Life ...

In a deft experiment, biologists have recreated a system that could have birthed essential cell features such as mitochondria ...

He sees the predatory planctomycetes as the microbial Archaeopteryx, a bridge organism between the prokaryotes and eukaryotes, and is convinced that the planctomycetes played a role in eukaryogenesis, ...

On one side there are the tiny bacteria and archaea, collectively known as prokaryotes. On the other side there are the huge and unwieldy eukaryotes, the third great domain of life. A typical ...

Vast numbers of different prokaryotic microorganisms shape the biosphere, with diverse metabolic capabilities. Determination of genome sequences for a wide range of bacteria and archaea now requires ...

Living organisms are made up of two kinds of cells—prokaryotes and eukaryotes. Prokaryotes are single-celled organisms that lack a nucleus and other membrane-bound organelles within the cell ...

“Asgard viperin and argonaute proteins have structural homology to eukaryotic proteins,” meaning they look very similar ...

During an August expedition, the team discovered around 40 of these features, which are believed to be sinkholes.

Genetic material DNA in a nucleus, plasmids are found in a few simple eukaryotic organisms. DNA is a single molecule, found free in the cytoplasm; additional DNA is found on one or more rings ...

Work in the Katz lab aims to elucidate principles of eukaryotic evolution through phylogenetic reconstruction, community sampling and analyses of genome evolution. The bulk of eukaryotic diversity is ...