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Detection and sequence analysis of Canine morbillivirus in multiple species of the Mustelidae family
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Detection and sequence analysis of Canine morbillivirus in multiple species of the Mustelidae family
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Journal Article
Detection and sequence analysis of Canine morbillivirus in multiple species of the Mustelidae family
2022
Overview
Background
Canine morbillivirus
(canine distemper virus, CDV) is a member of the
Paramyxoviridae
family. Canine distemper is a serious viral disease that affects many mammalian species, including members of the
Mustelidae
family. These animals have an elusive nature, which makes related virological studies extremely challenging. There is a significant knowledge gap about the evolution of their viruses and about the possible effects of these viruses to the population dynamics of the host animals. Spleen and lung tissue samples of 170 road-killed mustelids belonging to six species were collected between 1997 and 2022 throughout Hungary and tested for CDV with real-time RT-PCR.
Results
Three species were positive for viral RNA, 2 out of 64 Steppe polecats (
Mustela eversmanii
), 1 out of 36 European polecats (
Mustela putorius
) and 2 out of 36 stone martens (
Martes foina
); all 18 pine martens (
Martes martes
), 10 least weasels (
Mustela nivalis
) and 6 stoats (
Mustela erminea
) tested negative. The complete CDV genome was sequenced in five samples using pan-genotype CDV-specific, amplicon-based Nanopore sequencing. Based on the phylogenetic analysis, all five viral sequences were grouped to the Europe/South America 1 lineage and the distribution of one sequence among trees indicated recombination of the Hemagglutinin gene. We verified the recombination with SimPlot analysis.
Conclusions
This paper provides the first CDV genome sequences from Steppe polecats and additional complete genomes from European polecats and stone martens. The infected specimens of various species originated from distinct parts of the country over a long time, indicating a wide circulation of CDV among mustelids throughout Hungary. Considering the high virulence of CDV and the presence of the virus in these animals, we highlight the importance of conservation efforts for wild mustelids. In addition, we emphasize the importance of full genomic data acquisition and analysis to better understand the evolution of the virus. Since CDV is prone to recombination, specific genomic segment analyses may provide less representative evolutionary traits than using complete genome sequences.
Publisher
BioMed Central,BioMed Central Ltd,BMC
Subject
/ Animals
/ Control
/ Distemper Virus, Canine - genetics
/ Dogs
/ family
/ Ferrets
/ genes
/ genomics
/ Hungary
/ Identification and classification
/ lungs
/ mammals
/ Medicine
/ Methods
/ MinION
/ NGS
/ RNA
/ Sequence Analysis - veterinary
/ species
/ spleen
/ steppes
/ Veterinary Medicine/Veterinary Science
/ viruses
/ Zoology
