3.44kb direct duplication of the 5' regulatory sequences including the zeste binding region and first exon, 5' to the wild type w+ transcription unit included within a 10.5kb EcoRI-KpnI fragment.
construct_comment: Progenitor of a series of elements derived in vivo under dysgenic conditions. Used to investigate zeste-white interactions and to characterize the nature of modifications occurring in vivo during hybrid dysgenesis.
construct_comment: Progenitor of a series of elements derived in vivo under dysgenic conditions. Used to investigate zeste-white interactions and to characterize the nature of modifications occurring in vivo during hybrid dysgenesis.
construct_comment: Constructed by C. Zucker.