Giardia duodenalis (syn. Giardia lamblia and Giardia intestinalis) is a common intestinal
parasite of humans and mammals worldwide. Assessing the zoonotic transmission of the …

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 …

Current understanding of the higher order systematics of eukaryotes relies largely on
analyses of the small ribosomal subunit RNA (SSU rRNA). Independent testing of these …

Vase-shaped microfossils (VSMs) occur globally in Neoproterozoic rocks, but until now their
biological relationships have remained problematic. Exceptionally preserved new …

The Mycetozoa include the cellular (dictyostelid), acellular (myxogastrid), and protostelid
slime molds. However, available molecular data are in disagreement on both the monophyly …

Giardia lamblia is a ubiquitous intestinal pathogen of mammals. Evolutionary studies have
also defined it as a member of one of the earliest diverging eukaryotic lineages that we are …

To further validate previous observations in the taxonomy of Cryptosporidium parasites, the
phylogenetic relationship was analyzed among various Cryptosporidium parasites at the …

Giardia lamblia is a protozoan parasite of humans and other mammals that is thought to be
one of the most primitive extant eukaryotic organisms. Although distinctly eukaryotic, it is …

Resolving the order of events that occurred during the transition from prokaryotic to
eukaryotic cells remains one of the greatest problems in cell evolution. One view, the …

The taxonomic position of the uniciliate, unicentriolar zooflagellate Phalansterium is
problematic; its distinctive ultrastructure with a pericentriolar microtubular cone placed it in …