Transgenic construct that contains a Ecol\lacZarm.PV reporter flanked on each side by an insulator (scs' and scs respectively) to mitigate any chromosome position effects. A 246bp fragment containing lncRNA:roX1 nucleotides 3556 to 3801 (numbering according to GenBank:U97114) has been inserted (upstream of the arm promoter of the lacZ reporter) to test whether the fragment has a role in dosage compensation.
Construct: Fragment containing scs sequences.
Construct: Fragment containing scs' sequences.