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One-winged Drosophila subobscura: a phenotype with an obscure genetic basis
Dorcas J. OrengoI; Elisabeth Hauschteck-JungenII; Francesc MestresI
IDept. de Genètica, Facultat de Biologia, Avda. Diagonal, 645, 08071 Barcelona, Spain. Send correspondence to F.M.
IIZoologisches Institut, Universität Zürich, Winterthurerstrasse 190, CH - 8057 Zurich, Switzerland.
ABSTRACT
A line of one-winged Drosophila subobscura was studied. The absent wing is substituted by a bulky structure with macro and microchaetes, showing a thoracic appearance. Genetic crosses showed that there is no way to select for the trait by simple crossing. The number of one-winged flies in the various generations was always low. In one case a wingless fly was also obtained. The trait presents an unknown genetic pattern.
Keywords: One-winged; genetic basis; Drosophila subobscura.
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