For over 100 years, endosymbiotic theories have figured in thoughts about the differences
between prokaryotic and eukaryotic cells. More than 20 different versions of endosymbiotic …

Understanding the evolution of eukaryotic cellular complexity is one of the grand challenges
of modern biology. It has now been firmly established that mitochondria and plastids, the …

Cyanobacteria are photosynthetic prokaryotes that inhabit diverse aquatic and terrestrial
environments. However, the evolutionary mechanisms involved in the cyanobacterial habitat …

The early evolutionary history of the chloroplast lineage remains an open question. It is
widely accepted that the endosymbiosis that established the chloroplast lineage in …

Highlights•Endosymbiotic theory explains why organelles resemble free-living
bacteria.•Gene trees are well-suited to testing endosymbiotic theory, but not to replacing …

Gene essentiality is a founding concept of genetics with important implications in both
fundamental and applied research. Multiple screens have been performed over the years in …

Cyanobacteria played an important role in the evolution of Early Earth and the biosphere.
They are responsible for the oxygenation of the atmosphere and oceans since the Great …

Photosynthesis evolved in eukaryotes by the endosymbiosis of a cyanobacterium, the future
plastid, within a heterotrophic host. This primary endosymbiosis occurred in the ancestor of …

Cyanobacteria carry out oxygenic photosynthesis, play a key role in the cycling of carbon
and nitrogen in the biosphere, and have had a large impact on the evolution of life and the …

Cyanobacteria are among the most ancient of evolutionary lineages, oxygenic
photosynthesizers that may have originated before 3.0 Ga, as evidenced by free oxygen …