Acute Bee Paralysis Virus Field Isolates from Apiaries Suffering Colony Losses in Turkiye

Multiple viral infections are one of the main drivers of honey bee colony losses and threaten the sustainability of colony health. The Acute bee paralysis virus (ABPV) is one of the common honey bee viruses that can induce overt and/or covert infections in bee colonies. Globally more knowledge is needed about its effects leading to colony losses. ABPV-related pathology includes paralytic, trembling bees, unable to fly and, in some cases, ABPV causes the death of the bee colonies. The molecular phylogenetic of ABPV isolates obtained from apiaries suffering colony losses and/or with CCD-like complaints in Turkiye was performed in this study. The isolates' structural and non-structural gene regions were analyzed phylogenetically and compared according to sampling years and apiaries. According to the results, the nucleotide identity of the RNA-dependent RNA polymerase (RdRp) gene in Turkish ABPV field isolates is more conserved than the capsid gene. The evaluation of molecular differentiation among the ABPV field isolates can be used for determining the origin and relatedness of ABPV strains and periodic monitoring of ABPV infections in apiaries.