The differential banding pattern produced by Hoechst 33258 and quinachrine dihydrochloride in metaphase chromosomes of Culiseta longiareolata (Diptera: Culicidae)

SUMMARYHoechst 33258 was used for staining metaphase chromosomes of Culiseta longiareolata (Diptera: Culicidae) and the banding produced was compared to that obtained with Quinacrine. The Y telomeric region, which shows C+ banding pattern, is H+ but Q−, while some patacentromeric areas reveal H+/Q+ staining. The results and possible factors which could affect H and Q banding are discussed.