BALLOON [ba]
Lindsley & Grell, 1972, p. 25
location: 2-107.4.
origin: Spontaneous.
discoverer: Morgan, 10k.
references: Marshall and Muller, 1917, J. Exptl. Zool. 22: 457-70 (fig.). Bridges and Morgan, 1919, Carnegie Inst. Wash. Publ. No. 278: 148 (fig.). Morgan, Bridges, and Sturtevant, 1925, Bibliog. Genet. 2: 212 (fig.), 218. Bridges, 1937, Cytologia (Tokyo), Fujii Jub. Vol. 2: 745-55.
phenotype: Wings at first inflated with hemolymph to produce blisters and vesicles; venation weak, plexus-like; wings smaller, warped, discolored, divergent. Effect caused by inadequate contraction of epithelium after inflated stage of pupal wing [Waddington, 1940, J. Genet. 41: 75-139 (fig.)]. Sensitive to temperature. RK3 above 25oC; RK2 at 19o or below.
cytology: Located between 60C5 and 60D2 based on inclusion within Df(2R)Px = Df(2R)60B8-10;60D1-2 and within Df(2R)Px2 = Df(2R)60C5-6;60D9-10 (Bridges, 1937).
other information: May be part of a pseudoallelic complex with bs and Px.
color figure: P. A. Otto (original)
b & w figure: Bridges and Morgan, 1919, Carnegie Inst. Wash. Publ. No. 278: 148 (original drawn by Edith M. Wallace)