title: Preblastoderm mosaics of mutants of the bithorax-complex.
abstract: InDrosophila melanogaster, segmental specification takes place in groups of cells around the blastoderm stage. This segmental specification requires the function of the genes of the bithorax-complex. We have studied preblastoderm mosaics (gynandromorphs) of mutant (bx3,pbx, Ubx, Ubx80) and wildtype (heterozygotes for these alleles) cells. The results show a total cell autonomy in the differentiation of both wildtype and homoeotially transformed cells. However, several unexpected phenotypes were found. They are discussed in terms of the function of the bithorax genes and early interactions between mutant and wildtype territories.
authors.affiliation: Centro de Biologia Molecular, Consejo Superior de Investigaciones Cientificas, Universidad Autonoma de Madrid, Canto Blanco, Madrid-34, Spain.
authors.forename: F J
authors.initials: FJ
authors.lastname: Miñana
authors.affiliation: Centro de Biologia Molecular, Consejo Superior de Investigaciones Cientificas, Universidad Autonoma de Madrid, Canto Blanco, Madrid-34, Spain.
authors.forename: A
authors.initials: A
authors.lastname: García-Bellido
keywords: Cell affinities; Cell autonomy; Drosophila melanogaster; Genetic mosaics