btd::Mmmm\Sp1BTDzf is a suppressor of lateropharyngeal organ phenotype of btdXG
btd::Mmmm\Sp1BTDzf is a suppressor of cephalopharyngeal skeleton phenotype of btdXG
btd::Mmmm\Sp1BTDzf is a non-suppressor of intercalary segment | embryonic stage phenotype of btdXG
btd::Mmmm\Sp1BTDzf is a non-suppressor of antennal segment | embryonic stage phenotype of btdXG
Partially rescues the btdXG phenotype; the mandibular segment is partially rescued (the lateropharyngeal organ is rescued and the ventral arm of the head skeleton is partially rescued), but the intercalary and antennal segments of the embryo are not rescued.