Title: | Female-specific insect lethality engineered using alternative splicing |
Author(s): | Fu G; Condon KC; Epton MJ; Gong P; Jin L; Condon GC; Morrison NI; Dafa'alla TH; Alphey L; |
Address: | "Oxitec Limited, 71 Milton Park, Oxford OX14 4RX, UK" |
ISSN/ISBN: | 1087-0156 (Print) 1087-0156 (Linking) |
Abstract: | "The Sterile Insect Technique is a species-specific and environmentally friendly method of pest control involving mass release of sterilized insects that reduce the wild population through infertile matings. Insects carrying a female-specific autocidal genetic system offer an attractive alternative to conventional sterilization methods while also eliminating females from the release population. We exploited sex-specific alternative splicing in insects to engineer female-specific autocidal genetic systems in the Mediterranean fruit fly, Ceratitis capitata. These rely on the insertion of cassette exons from the C. capitata transformer gene into a heterologous tetracycline-repressible transactivator such that the transactivator transcript is disrupted in male splice variants but not in the female-specific one. As the key components of these systems function across a broad phylogenetic range, this strategy addresses the paucity of sex-specific expression systems (e.g., early-acting, female-specific promoters) in insects other than Drosophila melanogaster. The approach may have wide applicability for regulating gene expression in other organisms, particularly for combinatorial control with appropriate promoters" |
Keywords: | "*Alternative Splicing Animals Animals, Genetically Modified Ceratitis capitata/*genetics Drosophila Proteins Female Gene Expression Regulation/drug effects Infertility, Female/*genetics Insect Control/*methods Nuclear Proteins/*genetics Population Dynamic;" |
Notes: | "MedlineFu, Guoliang Condon, Kirsty C Epton, Matthew J Gong, Peng Jin, Li Condon, George C Morrison, Neil I Dafa'alla, Tarig H Alphey, Luke eng Research Support, Non-U.S. Gov't 2007/02/27 Nat Biotechnol. 2007 Mar; 25(3):353-7. doi: 10.1038/nbt1283. Epub 2007 Feb 18" |