title: [Female-specific hemolymph proteins in gynandromorphs ofApis mellifica].
abstract: In the honey bee vitellogenin is present not only in the hemolymph of fertile queens, but also of infertile nurse workers in colonies. Drones lack this female-specific protein.Vitellogenin was also found in gynandromorphs, especially in those with an anteriorposterior distribution of the male/female mosaics. The occurrence of vitellogenin in gynandromorphs is age-dependent and socially conditioned as in worker bees. The female-specific regulation of vitellogenin synthesis is probably based on sex-specific properties of the differentiated fat body.
authors.affiliation: Zoologisches Institut der Universität Münster/Westf, Badestr. 9, D-4400, Münster.Westf, Bundesrepublik Deutschland.
authors.forename: Wolf
authors.initials: W
authors.lastname: Engels
authors.affiliation: Zoologisches Institut der Universität Münster/Westf, Badestr. 9, D-4400, Münster.Westf, Bundesrepublik Deutschland.
authors.forename: Hartmut
authors.initials: H
authors.lastname: Fahrenhorst
authors.affiliation: Institut für Landwirtschaftliche Zoologie und Bienenkunde, der Universität Bonn, Bonn, Deutschland.
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Drescher
authors.affiliation: Institut für Landwirtschaftliche Zoologie und Bienenkunde, der Universität Bonn, Bonn, Deutschland.
authors.forename: Kristina
authors.initials: K
authors.lastname: Möbius