Construct: 2.8kb fragment containing the Dvir\tra coding region.
Partially rescues D.melanogaster XX tra- flies; there is a marked reduction in the development of male genital structures, and female-specific structures such as the vaginal plates and thorn bristles are formed.
Assayed in D.melanogaster. XY D.melanogaster flies carrying Dvir\tratOa are normal and fertile, suggesting that sex-specific splicing of the first intron of this gene is carried out in D.melanogaster.