Fig. 3. The double transgene insertion in EL702C is accompanied by a paracentric inversion between the integration points. (A) Painted regions between BACs F2O10 and F28J15 (yellow) and MBK21 and MSL1 (red) schematically positioned on the top arm of chromosome 3 of the wild-type (left) and together with the transgene (green) of the EL702C genotype (right). (B) FISH of the complex probe to pachytene chromosomes of the wild type (left) and homozygous EL702C (right). Arrows indicate the top arm end of chromosome 3 bivalent. Bars, 5 µm.