fs(1)K10unspecified mutants lay eggs containing a mass of chorionic material instead of two dorsal appendages.
Homozygous mutant eggs are dorsalised.
Homozygous females lay dorsalised eggs. This phenotype is not altered if the females also carry vas6356-001/vas6356-005.
Fate-mapping experiments show that fs(1)K10unspecified embryos do possess dorso-ventral polarity, but the dorsoventral and anteroposterior axes lie parallel to each other in these mutant embryos.
Homozygous females lay eggs with abnormal dorsal appendages.