| abstract |
A gene expression system is provided. The system comprises at least one coding sequence to be expressed in an organism, and at least one promoter operably linked thereto. It further comprises at least one splice control sequence which, in cooperation with a spliceosome, mediates alternative splicing of RNA transcripts of the coding sequence. The mediation of alternative splicing is in a sex-specific, stage-specific, germline-specific and tissue-specific manner. |