Figure 1. Strain PF405 Genetics.
The qC1-balanced region of chromosome is shown in green. We used a version of qC1 with the qIs26 insertion that has the lag-2::GFP transgene and the dominant rol-6 allele su1006. The qIs26 insertion site created a recessive lethal allele such that qC1[qIs26] homozygotes are inviable. Heterozygotes have the Rol-6 phenotype and express GFP. Animals that have lost the balancer do not express GFP, are uncoordinated, and are mel-28 (and thus produce only dead embryos).