Related Experiment Video
Updated: Oct 17, 2026

Studying Cryptosporidium Infection in 3D Tissue-derived Human Organoid Culture Systems by Microinjection
Published on: September 14, 2019
Phylogenetic relationships among isolates of Cryptosporidium: evidence for several new species
U M Morgan1, P T Monis, R Fayer
1World Health Organisation Collaborating Centre for the Molecular Epidemiology of Parasitic Infections, Division of Veterinary and Biomedical Sciences, Murdoch University, WA, Australia.
Abstract:
Isolates of Cryptosporidium were characterized using nucleotide sequence analysis of the 18S rRNA and dihydrofolate reductase genes and also random-amplified polymorphic DNA analysis. Phylogenetic analysis confirmed the validity of the species of Cryptosporidium examined in this study such as Cryptospordium muris and Cryptosporidium baileyi, and also reinforced evidence from numerous researchers worldwide suggesting that Cryptosporidium parvum is not a single uniform species. The data obtained provided strong support for the validity of Cryptosporidium felis. Evidence suggests that the newly identified marsupial and pig genotypes may also be distinct and valid species, but biological studies are required for confirmation.
Related Concept Videos
Diversity of Protists II
Diversity of Protists I
The Evidence for Evolution
Diversity of Protists IV
Phylogenetic Species Concept in Microbiology
Fungal Phylum Microsporidia
