Expression of the Drosophila retrovirus gypsy as ultrastructurally detectable particles in the ovaries of flies carrying a permissive flamenco allele.

Abstract excerpt

The endogenous retrovirus gypsy is controlled by the Drosophila gene flamenco (flam). New insertions of gypsy occur in any individual Drosophila if its mother is homozygous for the flam1 permissive allele and contains functional gypsy proviruses. The ovaries of flam1 females also contain high amounts of gypsy RNAs. Unexpectedly however, gypsy derepression does not occur in the flam1 female germ-line proper but in...

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