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 …

Major insights into the phylogenetic distribution, biochemistry, and evolutionary significance
of organelles involved in ATP synthesis (energy metabolism) in eukaryotes that thrive in …

Hypotheses about the origin of eukaryotic cells are classically framed within the context of a
universal 'tree of life'based on conserved core genes. Vigorous ongoing debate about …

Microsporidia are obligate intracellular pathogens related to Fungi. These organisms have a
unique invasion organelle, the polar tube, which upon appropriate environmental …

The discovery of the Archaea and the proposal of the three-domains 'universal'tree, based
on ribosomal RNA and core genes mainly involved in protein translation, catalysed new …

The serial endosymbiosis theory is a favored model for explaining the origin of mitochondria,
a defining event in the evolution of eukaryotic cells. As usually described, this theory posits …

Giardia lamblia is a common cause of diarrhea in humans and other mammals throughout
the world. It can be distinguished from other Giardia species by light or electron microscopy …

The ancestors of fungi are believed to be simple aquatic forms with flagellated spores,
similar to members of the extant phylum Chytridiomycota (chytrids). Current classifications …

This revision of the classification of unicellular eukaryotes updates that of Levine et al.(1980)
for the protozoa and expands it to include other protists. Whereas the previous revision was …

From comparative analyses of the nucleotide sequences of genes encoding ribosomal
RNAs and several proteins, molecular phylogeneticists have constructed a “universal tree of …