First complete genome sequence and molecular characterization of Canine morbillivirus isolated in Central Brazil

Sci Rep. 2021 Jun 22;11(1):13039. doi: 10.1038/s41598-021-92183-2.

Abstract

The Brazilian regions are still highly endemic areas for Canine morbillivirus [canine distemper virus (CDV)]. However, little is known regarding the genetic variability of the strain circulating in several Brazilian regions. Here, we report the first full-length genome and molecular characterization of CDV isolated from domestic dogs in the Brazilian Center-West region. Sequence alignment and phylogenetic analyses based on deduced amino acid and nucleotide sequences showed that the isolated strain is characterized as the South America-I/Europe genotype. However, it segregates into a CDV subgenotype branch. Interestingly, both H and F proteins have a gain of a potential N-glycosylation sites compared to the Onderstepoort vaccine strain. Therefore, this study provides a reference to further understand the epidemic and molecular characteristics of the CDV in Brazil.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Brazil
  • Distemper / virology
  • Distemper Virus, Canine / genetics*
  • Distemper Virus, Canine / isolation & purification*
  • Dogs / virology*
  • Genes, Viral
  • Genome, Viral*
  • Genotype
  • Glycosylation
  • Phylogeny
  • Recombination, Genetic / genetics
  • Selection, Genetic
  • Viral Proteins / chemistry
  • Viral Proteins / genetics

Substances

  • Viral Proteins