title: A novel rhabdovirus, related to Merida virus, in field-collected mosquitoes from Anatolia and Thrace.
abstract: Next-generation sequencing technologies have significantly facilitated the discovery of novel viruses, and metagenomic surveillance of arthropods has enabled exploration of the diversity of novel or known viral agents. We have identified a novel rhabdovirus that is genetically related to the recently described Merida virus via next-generation sequencing in a mosquito pool from Thrace. The complete viral genome contains 11,798 nucleotides with 83% genome-wide nucleotide sequence similarity to Merida virus. Five major putative open reading frames that follow the canonical rhabdovirus genome organization were identified. A total of 1380 mosquitoes comprising 13 species, collected from Thrace and the Mediterranean and Aegean regions of Anatolia were screened for the novel virus using primers based on the N and L genes of the prototype genome. Eight positive pools (6.2%) exclusively comprised Culex pipiens sensu lato specimens originating from all study regions. Infections were observed in pools with female as well as male or mixed-sex individuals. The overall and Cx. pipiens-specific minimal infection rates were calculated to be 5.7 and 14.8, respectively. Sequencing of the PCR products revealed marked diversity within a portion of the N gene, with up to 4% divergence and distinct amino acid substitutions that were unrelated to the collection site. Phylogenetic analysis of the complete and partial viral polymerase (L gene) amino acid sequences placed the novel virus and Merida virus in a distinct group, indicating that these strains are closely related. The strain is tentatively named "Merida-like virus Turkey". Studies are underway to isolate and further explore the host range and distribution of this new strain.
authors.affiliation: Virology Unit, Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Morphology Building 3rd Floor, Sihhiye, 06100, Ankara, Turkey. ekoray@hacettepe.edu.tr.|Center for Biological Threats and Special Pathogens 1 (ZBS-1), Robert Koch Institute, Berlin, Germany. ekoray@hacettepe.edu.tr.
authors.forename: Koray
authors.initials: K
authors.lastname: Ergünay
authors.affiliation: Center for Biological Threats and Special Pathogens 1 (ZBS-1), Robert Koch Institute, Berlin, Germany.
authors.forename: Annika
authors.initials: A
authors.lastname: Brinkmann
authors.affiliation: Center for Biological Threats and Special Pathogens 1 (ZBS-1), Robert Koch Institute, Berlin, Germany.
authors.forename: Nadine
authors.initials: N
authors.lastname: Litzba
authors.affiliation: Division of Ecology, Department of Biology, Faculty of Sciences, Hacettepe University, Ankara, Turkey.
authors.forename: Filiz
authors.initials: F
authors.lastname: Günay
authors.affiliation: Department of Biology, Faculty of Arts and Sciences, Namık Kemal University, Tekirdağ, Turkey.
authors.forename: Sırrı
authors.initials: S
authors.lastname: Kar
authors.affiliation: Department of Parasitology, Faculty of Veterinary Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Kerem
authors.initials: K
authors.lastname: Öter
authors.affiliation: Virology Unit, Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Morphology Building 3rd Floor, Sihhiye, 06100, Ankara, Turkey.
authors.forename: Serra
authors.initials: S
authors.lastname: Örsten
authors.affiliation: Division of Ecology, Department of Biology, Faculty of Sciences, Hacettepe University, Ankara, Turkey.
authors.forename: Yasemen
authors.initials: Y
authors.lastname: Sarıkaya
authors.affiliation: Division of Ecology, Department of Biology, Faculty of Sciences, Hacettepe University, Ankara, Turkey.
authors.forename: Bülent
authors.initials: B
authors.lastname: Alten
authors.affiliation: Center for Biological Threats and Special Pathogens 1 (ZBS-1), Robert Koch Institute, Berlin, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Nitsche
authors.affiliation: Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, Suitland, MD, USA.|Department of Entomology, Walter Reed Army Institute of Research, Silver Spring, MD, USA.|Department of Entomology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA.
authors.forename: Yvonne-Marie
authors.initials: YM
authors.lastname: Linton
mesh_terms: D000818:Animals; D009033:Culicidae / Q000821:virology*; D005260:Female; D016679:Genome, Viral; D008297:Male; D010802:Phylogeny; D012209:Rhabdoviridae / Q000235:genetics* / Q000302:isolation & purification*; D014421:Turkey / Q000453:epidemiology