construct_comment: Derivative of one of the constructs comprising the P{Cg1-3\'dup.CAT+} series; use of internal P3\' sequences during transposition results in loss of CAT+ marker.
construct_comment: Derivative of one of the constructs comprising the P{Cg1-3\'dup.CAT+} series; use of internal P3\' sequences during transposition results in loss of CAT+ marker.