Drosophila S virus, a hereditary reolike virus, probable agent of the morphological S character in Drosophila simulans.
Isometric reolike virions were found in all the examined Drosophila simulans flies from two strains (SimES-st and Israel-st) presenting the S phenotype, a maternally inherited morphological trait (abnormalities of bristles). Normal flies of both strains appeared virus-free. Virions were found in the cytoplasm of male and female gonads and epidermal cells, including the bristle-forming cells, which appeared disorganized. Steps of virogenesis were described. A positive correlation was demonstrated between expressivity of the S phenotype and degree of viral infection. This hereditary reolike virus seems to be responsible for the S character of D. simulans and was named DSV (Drosophila S virus).
Louis
C
C
Station de Recherches de Pathologie Comparée, Saint Christol, France.
Lopez-Ferber
M
M
Comendador
M
M
Plus
N
N
Kuhl
G
G
Baker
S
S
D000818:Animals; D004330:Drosophila / Q000235:genetics / Q000382:microbiology*; D005260:Female; D007304:Insect Viruses / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D010641:Phenotype; D012087:Reoviridae / Q000648:ultrastructure*; D014771:Virion / Q000648:ultrastructure*