Figure 5.

Embryos maternally and zygotically mutant for pan display segment polarity phenotypes resembling those of zygotic pan mutant embryos. The alternation of naked cuticle and denticle belts in wild-type embryos (A) is replaced by a continuous lawn of denticles in wg^−/− mutant embryos (C). The zygotic pan mutant phenotype is milder than that of wg mutants (B). Embryos derived from pan mutant germ-line clones (GLCs; D and E) do not show a more severe phenotype than the zygotic mutants. Paternal contribution can rescue the phenotype of pan^−/− GLC-derived animals (PR-GLC; F).