breakpoints unknown. No visible X-chromosome rearrangement in vicinity of 13F (Campbell, Duttaroy, Katzen and Chovnick, 1991).
wing vein & macrochaeta
Weak nibbled wing margin phenotype and ectopic bristles are present on the wing veins.
Extreme allele; wings are small and scalloped, like vestigial at high temperature.
More extreme than sd. Wings small and scalloped. Like vg at high temperatures. Crossing over inhibited. RK2A?
Panshin, 7th July 1933.
Panshin
sd2 mutants are more sensitive to ct wing margin enhancer deletions that gypsy insertions in ct.