Mosaic analysis demonstrates mutant phenotype is non-autonomous, clones survive as sectors of mutant tissue only in the abdomen and wing. Individuals survive when Dp(1;4)wm65g or Dp(1;3)wm49a is present (at 25oC but not 18oC). Surviving males are phenotypically normal and fertile.
Lethality acts in the first instar stages. No growth. Survive as XY but not as X0 males in presence of either Dp(1;4)wm65g or Dp(1;3)wm49a.
Judd, 12 Dec. 1962.