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Phylogenetic analysis of Cryptosporidium parasites based on the small-subunit rRNA gene locus

Article Abstract:

Evidence from biological characteristics and host specificity studies show that species differentiation occurs in Cryptosporidium parasites. This observation was further supported by a phylogenetic analysis of the parasite genus Cryptosporidium wherein the small-subunit rRNA genes of Cryptosporidium parvum, Cryptosporidium muris, Cryptosporidium baileyi and Cryptosporidium serpentis were characterized. The Cryptosporidium species produced two clades, with Cryptosporidium baileyi and Cryptosporidium parvum belonging to one clade and Cryptosporidium muris and Cryptosporidium serpentis belonging to the other.

Author: Lal, Altaf A., Xiao, Lihua, Fayer, Ronald, Sulaiman, Irshad, Escalante, Lillian, Yang, Chunfu, Escalante, Anannias A., Montali, Richard J.
Publisher: American Society for Microbiology
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
Genotype, Genotypes, RNA, Phylogeny, Parasites, Cryptosporidiosis, Parasitic diseases

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Genetic diversity within Cryptosporidium parvum and related Cryptosporidium species

Article Abstract:

Researchers discovered extensive genetic diversity of Cryptosporidium parvum isolated from humans, cows, pigs, dogs, mice, ferrets, marsupials, and monkeys. Each host species had a specific genotype, and these genotypes could be distinguished by PCR-restriction fragment length polymorphisms.

Author: Morgan, Una M., Lal, Altaf A., Xiao, Lihua, Fayer, Ronald, Limor, Josef, Thompson, R.C.A., Arrowood, Michael, Escalante, Ananias, Shulaw, William
Publisher: American Society for Microbiology
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
Genetic aspects, Biodiversity, Species diversity

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Subjects list: Research, Coccidia, Cryptosporidium
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