Protozoan parasites that profoundly affect mankind represent an exceptionally diverse group
of organisms, including Plasmodium, Toxoplasma, Entamoeba, Giardia, trypanosomes, and …

The chromalveolate “supergroup” is of key interest in contemporary phycology, as it contains
the overwhelming majority of extant algal species, including several phyla of key importance …

Molluscs comprise the second largest phylum of animals (after arthropods), occurring in
virtually all habitats. Some are commercially important, a few are pests and some carry …

The kinetochore is the macromolecular protein complex that directs chromosome
segregation in eukaryotes. It has been widely assumed that the core kinetochore consists of …

Background Due to the absence of transcription initiation regulation of protein coding genes
transcribed by RNA polymerase II, posttranscriptional regulation is responsible for the …

Horizontal gene transfer (HGT) is an important source of novelty in eukaryotic genomes. This
is particularly true for the ochrophytes, a diverse and important group of algae. Previous …

The division of life into producers and consumers is blurred by evolution. For example,
eukaryotic phototrophs can lose the capacity to photosynthesize, although they may retain …

Most eukaryotic lineages belong to one of a few major groups. However, several protistan
lineages have not yet been robustly placed in any of these groups. Both the breviates and …

The presence of a nucleus and other membrane-bounded intracellular compartments is the
defining feature of eukaryotic cells. Endosymbiosis accounts for the origins of mitochondria …

Recycling of endocytic receptors to the cell surface involves passage through a series of
membrane-bound compartments by mechanisms that are poorly understood. In particular, it …