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The genus Hammondia is paraphyletic

Published online by Cambridge University Press:  01 April 1999

J. T. ELLIS ,
D. A. MORRISON ,
S. LIDDELL ,
M. C. JENKINS ,
O. B. MOHAMMED ,
C. RYCE  and
J. P. DUBEY
J. T. ELLIS
Affiliation:
Molecular Parasitology Unit, Department of Cell and Molecular Biology, University of Technology, Sydney, Westbourne Street, Gore Hill, NSW 2065, Australia
D. A. MORRISON
Affiliation:
Molecular Parasitology Unit, Department of Cell and Molecular Biology, University of Technology, Sydney, Westbourne Street, Gore Hill, NSW 2065, Australia
S. LIDDELL
Affiliation:
Parasite Biology and Epidemiology Laboratory, Livestock and Poultry Sciences Institute, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA
M. C. JENKINS
Affiliation:
Parasite Biology and Epidemiology Laboratory, Livestock and Poultry Sciences Institute, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA
O. B. MOHAMMED
Affiliation:
King Khalid Wildlife Centre, National Commission of Wildlife Conservation and Development, P.O. Box 61681, Riyadh 11575, Saudi Arabia
C. RYCE
Affiliation:
Molecular Parasitology Unit, Department of Cell and Molecular Biology, University of Technology, Sydney, Westbourne Street, Gore Hill, NSW 2065, Australia
J. P. DUBEY
Affiliation:
Parasite Biology and Epidemiology Laboratory, Livestock and Poultry Sciences Institute, Agricultural Research Service, US Department of Agriculture, Beltsville, Maryland 20705, USA
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Abstract

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The phylogenetic relationships amongst Hammondia, Neospora and Toxoplasma were investigated by DNA sequence comparisons of the D2/D3 domain of the large subunit ribosomal DNA and the internal transcribed spacer 1. The results obtained allow us to reject the hypothesis that N. caninum and H. heydorni are the same species and show that Hammondia hammondi is probably the sister taxon to Toxoplasma gondii.

Keywords

Hammondia spp.Neospora caninumToxoplasma gondiiphylogeny
Type
Research Article
Information
Parasitology , Volume 118 , Issue 4 , April 1999 , pp. 357 - 362
Copyright
© 1999 Cambridge University Press