BAC clone (CH322-47O20) that encompasses shrb, in which the genomic sequence encoding the shrb transcription unit has been replaced by the Scer\SNF7 coding sequence.
Scer\SNF7shrb.BAC/Scer\SNF7shrb.BAC is a non-suppressor of lethal phenotype of shrb4
Scer\SNF7shrb.BAC, shrb4 has lethal - all die during second instar larval stage phenotype