First Complete Genome of Reticuloendotheliosis Virus in a Mallard Duck from Brazil: Phylogenetic Insights and Evolutionary Analysis.

ABSTRACT: Reticuloendotheliosis virus (REV) is an oncogenic retrovirus that affects both commercial and free-ranging birds. To date, only two complete REV genome sequences have been identified in chickens from South America, with no records in other avian species. This study reports the first complete genome of REV detected in a mallard duck (Anas platyrhynchos domesticus) in South America. In 2021, a mallard duck in Brazil died from severe lymphoproliferative disease affecting multiple organs. Molecular detection and histopathological analysis confirmed REV as the causative agent. Using dideoxy sequencing and phylogenetic analysis, the virus was classified as subtype 3 (REV-3). The phylogenetic analysis identified three clades, each with a bootstrap value of 100, corresponding to the three R

SUBMITTER: Chacon RD 

PROVIDER: S-EPMC11858360 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature