PBac{WH} insertion in the first common intron.
The tracheal dorsal trunk is long and tortuous in mutant embryos compared to wild type.
Trachea are longer than normal and are missing lumenal segments of the ganglionic branches in mutant embryos.
Mutants show defects in septate junction barrier function (as tested using a dye exclusion assay).
varif00033 has presumptive embryonic/larval tracheal system phenotype, enhanceable by dpyov1
varif00033 has presumptive embryonic/larval tracheal system phenotype, non-enhanceable by shgg119
The tracheal tube length defects caused by varif00033 are enhanced if the embryos are also mutant for dpov1, but are not enhanced if the embryos are also mutant for shgg119.
varif00033 is rescued by varishort.UAS/Scer\GAL4da.G32
varif00033 is rescued by Scer\GAL4da.G32/varilong.UAS