Untersuchungen �ber das pleiotrope Manifestationsmuster der Mutante lozenge-clawless (lz cl ) von Drosophila melanogaster

Characterization of the female-sterile mutant Almondex of Drosophila melanogaster

“…Moreover, Iz mutants show a complex array of pleiotropic effects involving nonreproductive structures (cf. ANDERS, 1955). The mutant amx has no such effects and apparently no defects of any of the sex organs.…”

Interaction of the mutants sx, tra and dsx in Drosophila melanogaster. Chaetotaxy of the basitarsus of the forelegs in males and females

“…3. According to this scheme, dsx may be included in the second category of interacting systems and sx in the third, while the action of tra, as yet, remains somewhat ANDERS (1955) who has shown that the lozeme-clawless expression in tra (XX) is more or less like in regular lzeZ (XY) males and not as in lzc~/1S females. This by itself shows that the mutant tra acts relatively early in development.…”

“…Whether sx/+ ; tra/tra should be considered a phenotypically male fly or an intersexual type is, therefore, still a matter of argument. Developmental genetic studies, specially the one by ANDERS (1955), however, support the former alternative as being more likely (see HADORN, 1965;LAKItOTIA & MUKHERJEE, 1969). The point relevant to the present context is that the action of these different genes leads one to postulate a genetic system for the determination of certain sexdependent phenotypic characteristics.…”

CELL AFFINITIES IN ANTENNAL HOMOEOTIC MUTANTS OF DROSOPHILA MELANOGASTER

“…Homoeotic antennal legs and and thoracic legs seem to be identical organs on the basis of genetical experiments. Genes which modify the thoracic leg morphology also affect the antennal leg of ssa mutants (dachs, fourjointed, combgap, thickoid, lozenge-clawless, WADDINGTON 1939;BRAUN 1940;VILLEE 1944;ANDERS 1955), and Antp mutants (polyconb, extrasexcomb, STERN 1954;HANNAH-ALAVA 1964), while arista mutants do not modify it (thread, aristaless, WADDINGTON 1939;BRAUN 1940).…”