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A newly described strain of Eimeria arloingi (strain A) belongs to the phylogenetic group of ruminant-infecting pathogenic species, which replicate in host endothelial cells in vivo

Silva, L M R; Chávez-Maya, F; Macdonald, S; Pegg, E; Blake, D P; Taubert, A; Hermosilla, C

Authors

L M R Silva

F Chávez-Maya

S Macdonald

E Pegg

D P Blake

A Taubert

C Hermosilla



Abstract

Coccidiosis caused by Eimeria species is an important disease worldwide, particularly in ruminants and poultry. Eimeria infection can result in significant economic losses due to costs associated with treatment and slower growth rates, or even with mortality of heavily infected individuals. In goat production, a growing industry due to increasing demand for caprine products worldwide, coccidiosis is caused by several Eimeria species with E. arloingi and E. ninakohlyakimovae the most pathogenic. The aims of this study were genetic characterization of a newly isolated European E. arloingi strain (A) and determination of phylogenetic relationships with Eimeria species from other ruminants. Therefore, a DNA sequence of E. arloingi strain (A) containing 2290 consensus nucleotides (the majority of 18S rDNA, complete ITS-1 and 5.8S sequences, and the partial ITS-2) was amplified and phylogenetic relationship determined with the most similar sequences available on GenBank. The phylogenetic tree presented a branch constituted by bovine Eimeria species plus E. arloingi, and another one exclusively populated by ovine Eimeria species. Moreover, E. arloingi, E. bovis and E. zuernii, which all replicate in host intestinal endothelial cells of the lacteals, were found within the same cluster. This study gives new insights into the evolutionary phylogenetic relationships of this newly described caprine Eimeria strain and confirmed its close relationship to other highly pathogenic ruminant Eimeria species characterized by macromeront formation in host endothelial cells of the central lymph capillaries of the small intestine.

Citation

Silva, L. M. R., Chávez-Maya, F., Macdonald, S., Pegg, E., Blake, D. P., Taubert, A., & Hermosilla, C. (2017). A newly described strain of Eimeria arloingi (strain A) belongs to the phylogenetic group of ruminant-infecting pathogenic species, which replicate in host endothelial cells in vivo. Veterinary Parasitology, 248, 28-32. https://doi.org/10.1016/j.vetpar.2017.10.014

Journal Article Type Other
Acceptance Date Oct 21, 2017
Publication Date Nov 1, 2017
Deposit Date Nov 7, 2017
Publicly Available Date Nov 1, 2018
Journal VETERINARY PARASITOLOGY
Print ISSN 0304-4017
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 248
Pages 28-32
DOI https://doi.org/10.1016/j.vetpar.2017.10.014
Public URL https://rvc-repository.worktribe.com/output/1390154