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Published in: Archives of Virology 11/2018

01-11-2018 | Original Article

Columbid circoviruses detected in free ranging pigeons from Southern Brazil: insights on PiCV evolution

Authors: M. R. Loiko, D. M. Junqueira, A. P. M. Varela, C. Tochetto, C. M. Scheffer, D. A. Lima, A. P. Morel, C. Cerva, W. P. Paim, Fabiana Quoos Mayer, P. M. Roehe

Published in: Archives of Virology | Issue 11/2018

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Abstract

Pigeon circovirus (PiCV) is taxonomically classified as a member of the Circovirus genus, family Circoviridae. The virus contains a single stranded DNA genome of approximately 2 kb, with minor length variations among different isolates. The occurrence of PiCV infections in pigeons (Columba livia) has been documented worldwide over the past 20 years; however, in Brazil there were still no reports on PiCV detection. This study identifies seven PiCV genomes recovered from domestic pigeons of South Brazil through high-throughput sequencing and shows a high frequency of PiCV infection, through quantitative real-time PCR. Phylogenetic classification was performed by maximum likelihood analysis of the full genomes, ORF V1 (Rep) and ORF C1 (Cap). The results show that either full genome or Cap based analysis allowed PiCV classification into five major clades (groups A to E), where Brazilian sequences were classified as A, C or D. Recombination analyses were carried out with Simplot and RDP4 and the results show that both Rep and Cap ORFs contain several recombination hotspots, pointing to an important role for such events in PiCV evolution.
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Metadata
Title
Columbid circoviruses detected in free ranging pigeons from Southern Brazil: insights on PiCV evolution
Authors
M. R. Loiko
D. M. Junqueira
A. P. M. Varela
C. Tochetto
C. M. Scheffer
D. A. Lima
A. P. Morel
C. Cerva
W. P. Paim
Fabiana Quoos Mayer
P. M. Roehe
Publication date
01-11-2018
Publisher
Springer Vienna
Published in
Archives of Virology / Issue 11/2018
Print ISSN: 0304-8608
Electronic ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-018-3990-8

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