FhosMI01421/Df(3L)knittrigΔ1 animals show reduced viability.
Df(3L)knittrigΔ1 embryos transheterozygous with FhosMI01421 show reduced formation of ganglionic tracheal branches with significant penetrance - the majority of embryos show disruption in at least one ganglionic branch. No abnormal phenotype is detected for midline glial cells.