Figure 2.
Northern blot analyses of EGFP transcription in female midguts of the mariner Mos1 transformed lines (G4–5) Carb/egfp52, 112, 169, 54, and (G19) 105. Samples were prepared from midguts harvested after sugarfeeding (SF) or 4–96 h pbm. The 10 carcasses of Carb/egfp105 mosquitoes were without heads. The hybridization pattern of Carb/egfp157, 188, and 191 (not shown) resembled those of Carb/egfp54 and 169. Total RNA was extracted from pools of 25 midguts per time point. Blots were hybridized with random primed 32P-dCTP- labeled DNA probes or in vitro-transcribed 32P-dUTP-labeled probes corresponding to the EGFP gene at 48°C. Ethidium bromide stained agarose gels are shown as loading controls.