Figure 7

Maternal genotype determines the cuticle phenotypes. Tc-importin α1 dsRNA was injected into females of one strain, which were then mated to males of the other strain. Hence, the injected strain determines the genotype of the maternal contribution, while the zygotic genetic background is identical in both experiments (heterozygous for SB and black). (A) Injection of dsRNA (1 μg/μl) into female SB pupae mated to black males resulted in defects similar to those found in the SB strain (compare to Figure 2A,B). (B) Injection of Tc-importin α1 dsRNA (1 μg/μl) into female black pupae crossed with SB males resulted in cuticles similar to the black strain (compare with Figure 2F,G).