Based on the primer ends, the dind13.1 deletion extent was narrowed down to the range of 3R: 18,675,868..18,677,584. For reference, the P-element location is around 3R:18 ,677,510. The actual sequence used to determine the break points were: upstream- 'ACAACTCCAAGGAGCTGGTG' and downstream- 'CCTATACAGCCTGAAATGCCCA'. Again, the actual deletion may be smaller than this range, this was just the closest it was narrowed down to.