Monday, December 10, 2007
D0128

Phylogenetic analysis of closely-related picorna-like viruses in Apis mellifera

Abby L. Kalkstein, alk206@psu.edu1, Diana Cox-Foster, dxc12@psu.edu1, Nancy Ostiguy, nxo3@psu.edu1, and Edward C. Holmes, ech15@psu.edu2. (1) Pennsylvania State University, Entomology, 501 ASI, University Park, PA, (2) Pennsylvania State University, Biology, 608 Mueller, University Park, PA

Picorna-like viruses (positive-sense, single stranded RNA viruses) infecting A. mellifera are grouped into the genus Iflavirus or in the new family Dicistroviridae. Of the Iflavirus three are known to have a large effect on the survivorship of honey bees: Deformed wing virus (DWV), Kakugo virus (KV) and Varroa destructor virus (VDV-1). For this study Deformed Wing Virus was sequenced from bee samples from across the United States and was compared to sequences for Kakugo Virus isolated in Japan and Varroa Destructor Virus isolated in Europe. Phylogenetic incongruities indicate recombination between the two closely-related viruses DWV and KV, with VDV-1 being a distinct species. Analysis also suggests the tendency for clades to form between different geographical locations. Our data support DWV as having a common origin and having undergone divergence in bees found in the different continents.


Species 1: Hymenoptera Apidae Apis mellifera (honey bee)