Imprecise excision of the progenitor insertion, resulting in a deletion that removes part of the γCop gene.
Homozygotes die as late embryos with almost transparent cuticles and only weakly visible denticles.
Homozygous embryos show a number of tracheal defects. The branching pattern is often similar or identical to that of wild-type embryos, but the dorsal branches are often disrupted and form cyst-like structures rather than extended branches linked up to the dorsal trunk. The lumen of the dorsal trunk is much narrower in the mutant embryos than in wild type. and the dorsal trunk shows defects in lumen fusion, seen as interruptions in the luminal chitin cable at the dorsal trunk. Defects in lateral trunk fusion are also seen.
γCOP10 has embryonic/larval dorsal tracheal branch phenotype, suppressible by Scer\GAL4btl.PS/pioUAS.cJa
γCOP10 has embryonic/larval tracheal dorsal trunk phenotype, non-suppressible by Scer\GAL4btl.PS/pioUAS.cJa
Expression of pioScer\UAS.cJa under the control of Scer\GAL4btl.PS rescues the dorsal branch defects seen in γCop10 homozygous embryos. However, the dorsal trunk defects which are seen in γCop10 homozygous embryos are not rescued by expression of pioScer\UAS.cJa under the control of Scer\GAL4btl.PS.