Volume 76, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


Mosquitoes made resistant to pathogens through genetic engineering are proposed as a basis for developing a strategy to control disease transmission. Transgenic approaches that introduce exogenous antipathogen effector genes into mosquito genomes require -acting regulatory DNA to control tissue-, stage-, and sex-specific transgene expression. We show that control sequences derived from a vitellogenin-encoding gene of , a major vector in sub-Saharan Africa, can direct expression of an exogenous gene in a tissue-, stage-, and sex-specific manner in , a vector of urban malaria in southern Asia. Specific reporter gene expression was observed in fat-body tissues of transgenic blood-fed females, but not in transgenic males or non-blood-fed transgenic females. Multiple bloodmeals resulted in the continuous presence of reporter gene transcripts for at least 12 days. The persistent expression makes the heterologous promoter a good candidate for controlling transcription of engineered antipathogen effector genes in this important malaria vector.


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  • Received : 12 Dec 2006
  • Accepted : 13 Mar 2007

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