Ecol\lacZvvl.1+2 is a non-suppressor of larval tracheal system phenotype of vvlunspecified
Ecol\lacZvvl.1+2, trh8 has epidermis phenotype
The vvl expressing cells seen when Ecol\lacZvvl.1+2 is expressed in embryos in a trh8 mutant background fail to invaginate, remaining on the epidermal surface of the embryo.
Expression of Ecol\lacZvvl.1+2 is unable to rescue the tracheal network defects seen in vvlunspecified mutants.