The Cryptosporidium "mouse" genotype is conserved across geographic areas - PubMed (original) (raw)

The Cryptosporidium "mouse" genotype is conserved across geographic areas

U M Morgan et al. J Clin Microbiol. 1999 May.

Abstract

A 298-bp region of the Cryptosporidium parvum 18S rRNA gene and a 390-bp region of the acetyl coenzyme A synthetase gene were sequenced for a range of Cryptosporidium isolates from wild house mice (Mus domesticus), a bat (Myotus adversus), and cattle from different geographical areas. Previous research has identified a distinct genotype, referred to as the "mouse"-derived Cryptosporidium genotype, common to isolates from Australian mice. Comparison of a wider range of Australian mouse isolates with United Kingdom and Spanish isolates from mice and cattle and also an Australian bat-derived Cryptosporidium isolate revealed that the "mouse" genotype is conserved across geographic areas. Mice are also susceptible to infection with the "cattle" Cryptosporidium genotype, which has important implications for their role as reservoirs of infection for humans and domestic animals.

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Figures

FIG. 1

FIG. 1

Phylogram of Kimura’s distance generated from 18S rDNA sequence information among isolates of Cryptosporidium clustered by the unweighted pair group method of analysis.

FIG. 2

FIG. 2

Phylogram of Kimura’s distance generated from acetyl-CoA synthethase gene sequence information among isolates of Cryptosporidium clustered by the unweighted pair group method of analysis.

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