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Hepatozoon milleri sp. nov. (Adeleorina: Hepatozoidae) in Akodon montensis (Rodentia: Cricetidae: Sigmodontinae) from southeastern Brazil

Published online by Cambridge University Press:  29 November 2018

Larissa de Castro Demoner ,
Maria Regina Lucas da Silva ,
Natalia Mizuhira Magro  and
Lucia Helena O'Dwyer Open the ORCID record for Lucia Helena O'Dwyer [Opens in a new window]
Larissa de Castro Demoner
Affiliation:
Hospital Veterinário-Universidade Federal Rural do Semi-árido, Mossoró, Brazil
Maria Regina Lucas da Silva
Affiliation:
Universidade Estadual Paulista (UNESP), Instituto de Biociências, Departamento de Parasitologia, Campus de Botucatu, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
Natalia Mizuhira Magro
Affiliation:
Universidade Estadual Paulista (UNESP), Instituto de Biociências, Departamento de Parasitologia, Campus de Botucatu, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
Lucia Helena O'Dwyer*
Affiliation:
Universidade Estadual Paulista (UNESP), Instituto de Biociências, Departamento de Parasitologia, Campus de Botucatu, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
*
Author for correspondence: Lucia Helena O'Dwyer, E-mail: [email protected]
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Abstract

Members of the genus Hepatozoon (Miller, 1908) are blood parasites found in a wide range of host species, including wild rodents; however, information about the life cycle, distribution and Hepatozoon species diversity infecting these mammals are lacking. We studied the parasite stages and DNA sequences of Hepatozoon sp. of 11 naturally infected Akodon montensis. Thin blood smears, tissue samples and whole blood were obtained for morphology, morphometry and molecular analyses. Seven of the 11 rodents had gamonts on the blood smears. Biological and morphological features of the parasite such as tissue tropism, gamonts and meronts size and morphology, as well as the DNA sequence comparison and phylogenetic analysis, indicated that the Hepatozoon sp. detected in this study is distinct from those species previously reported in small rodents. Herein, we propose a new species, named Hepatozoon milleri sp. nov. This is the first description of a new Hepatozoon species from wild small rodents in Brazil, based on morphological and molecular characteristics.

Keywords

BrazilHepatozoonmolecular characterizationnew speciesparasite stagesrodent
Type
Research Article
Information
Parasitology , Volume 146 , Issue 5 , April 2019 , pp. 662 - 669
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Copyright
Copyright © Cambridge University Press 2018 

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