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Genetic study of one-winged files in the Va/Ba balanced strain of Drosophila subobscuras

Dorcas J. Orengo; Francesc Mestres

Department of Genetics, Faculty of Biology, University of Barcelona, Av. Diagonal 645, 08071 Barcelona, Spain. Send correspondence to F.M.

ABSTRACT

Some flies from the balanced lethal strain Va/Ba of Drosophila subobscura are found to lack one wing. The absent wing is substituted by a bulky structure with a thoracic appearance which presents both micro-and macrochaetes. This trait could be a homeotic transformation. A preliminary study on the inheritance of this trait has been done. The results presented here suggest a recessive hereditary pattern, involving at least three genes.

Keywords: Va/Ba balanced; Drosophila subobscura

REFERENCES

Mestres, F. and Busquets, D. (1991). Peculiarities of the Va/Ba balanced strain of D. subobscura. Dros. Inform. Serv. 70: 145-146.

Mestres, F., Pegueroles, G., Prevosti, A. and Serra, L. (1990). Colonization of America by D. subobscura: lethal genes and the problem of the 05 inversion. Evolution 44: 1823-1836.

Papaceit, M., San Antonio, J. and Prevosti, A. (1991). Genetic analysis of extra sex combs in hybrids between D. subobscura and D. madeirensis. Genetica 84: 107-114.

Mestres, F. and Busquets, D. (1991). Peculiarities of the Va/Ba balanced strain of D. subobscura. Dros. Inform. Serv. 70: 145-146

Mestres, F., Pegueroles, G., Prevosti, A. and Serra, L. (1990). Colonization of America by D. subobscura: lethal genes and the problem of the 05 inversion. Evolution 44: 1823-1836.

Papaceit, M., San Antonio, J. and Prevosti, A. (1991). Genetic analysis of extra sex combs in hybrids between D. subobscura and D. madeirensis. Genetica 84: 107-114.