Lindsley & Grell, 1972, pp. 21-22
location: 1-3.0.
origin: Spontaneous.
discoverer: Nazarenko, 28a.
references: 1930, Biol. Zentr. 50: 385-92 (fig.). Mohr, 1932, Proc. Intern. Congr. Genet., 6th. Vol. l: 190-212 (fig.).
phenotype: Homozygous female and male show shortened L5 vein, usually also L4, L2, and sometimes L3. Wings shortened, arched, thin. Costal bristles clumped and frayed; costal veins thickened. Thorax shows midfurrow with rearranged hair directions; hairs on thorax and head fewer, with clear patches and streaks. Male genitalia often rotated. Ax/+ female shows short L5 in half of the flies and sparse hair pattern on thorax. Lower temperature (l9oC) markedly decreases expression, and higher temperature enhances it. Ax/N8 approaches wild type in all characteristics. Enhanced by H so that Ax/Y; H/+ and Ax/Ax; H/+ are nearly lethal at 26o (House, 1959, Anat. Record 134: 581-82). RK2 in males.
cytology: A single-band duplication, presumably for 3C7 (Schultz in Morgan, Schultz, and Curry, 1941, Carnegie Inst. Wash. Year Book 40: 283).
other information: Probably a member of the Notch pseudoallelic complex.
color figure: P. A. Otto (original)
b & w figure: Mohr, 1932, Proc. Intern. Congr. Genet., 6th. Vol. l: 190-212.