New molecular data on mammalian Hepatozoon species (Apicomplexa: Adeleorina) from Brazil and Spain

The Journal of Parasitology
A Criado-FornelioJ C Barba-Carretero

Abstract

Molecular techniques were used to examine the phylogenetic relationships among Hepatozoon species isolated from 13 foxes and 15 opossums from Brazil, and from 15 dogs, 20 foxes, 45 rodents, and 330 domestic cats from Spain. Hemogregarine infection was confirmed by amplification of the 18S rRNA gene and later sequencing. No hemogregarine infections were found in opossums. The prevalence of Hepatozoon in canids ranged from 26.6% (symptomatic domestic dogs) to 90% (Spanish foxes). Four different H. canis genotypes were detected, as well as an H. americanum-related protozoan (97% identical to the USA strain). Two Spanish cats were parasitized by a Hepatozoon species (0.6% prevalence) that showed 96% sequence identity to H. canis. DNA amplification assays performed on Spanish rodents showed 2 bank voles (Clethrionomys glareolus) to be infected by a Hepatozoon species (4.44% prevalence) with 95% sequence identity to Hepatozoon sp. from cats. Phylogenetic analysis showed Hepatozoon to be a monophyletic genus, in which species from carnivorous mammals (Hepatozoon sp. from cats, H. americanum and H. canis) appear as a sister lineage of that of lower vertebrates and rodents. This association suggests that H. americanum evolved in ticks a...Continue Reading

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Citations

Nov 10, 2011·Parasitology Research·Giovanni Vargas-HernandezMirela Tinucci-Costa
Nov 12, 2013·Ticks and Tick-borne Diseases·Larissa de Castro DemonerLucia Helena O'Dwyer
Apr 28, 2010·Vector Borne and Zoonotic Diseases·Simona GabrielliGabriella Cancrini
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Aug 12, 2008·Parasites & Vectors·Filipe Dantas-Torres
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Apr 19, 2015·Parasites & Vectors·Adnan HodžićGeorg Gerhard Duscher

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Methods Mentioned

BETA
PCR

Software Mentioned

S TATG RAPHICS
BIOEDIT
TREEVIEW
PHYLIP
ClustalW
TREECON

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