Most copies of Dvir\Tv1 are found in the pericentromeric heterochromatin (copies are present in the pericentromeric heterochromatic regions of all six chromosomes), although a few copies are present in euchromatic sites dispersed on the chromosome arms.
Most copies of Dvir\Tv1 are found in the pericentromeric heterochromatin (copies are present in the pericentromeric heterochromatic regions of all six chromosomes), although a few copies are present in euchromatic sites dispersed on the chromosome arms.
The Dvir\Tv1 retrotransposon is 7kb when full length. It is flanked by 453bp direct long terminal repeats.
75nm diameter spherical virus-like particles have been isolated from a cell-line of D.virilis (79f7Dv3g).